*Moeller Operators for Scattering on Singular Potentials*(with J. Kupsch), Commun. Math. Phys.**2**, 147 (1966).*Absorptive Corrections to the Reaction γp -> Nπ in the One Pion Exchange Model with Gauge Invariant Extension*(with M.P. Locher), Z. Physik**195**, 461 (1966).*Definition and Existence of Multichannel Scattering States*, Commun. Math. Phys.**3**, 358 (1966).*One-Photon-Exchange Processes and Inelastic Form Factors*(with J. Zeiler), Z. Physik**199**, 479 (1967).*Reduction of the Three-Particle Collision Problem to Multichannel Two-Particle Lippmann-Schwinger Equations*(with E.O. Alt and P. Grassberger), Nucl. Phys.**B2**, 167 (1967).*Systematical Treatment of the Nonrelativistic N-Particle Scattering Problem*(with P. Grassberger), Nucl. Phys.**B2**, 181 (1967).*Photoproduction of N*(1236) by Polarized γ-Quanta*(with K. Böckmann and H. Wessel), Z. Phys.**202**, 477 (1967).*Quantenmechanische Stoßtheorie zusammengesetzter Teilchen*, Bonn - Preprint 2-23 (Habilitationsschrift 1967).*Derivation of the DWBA in an Exact Three-Particle Theory*(with E.O. Alt and P. Grassberger), Nucl. Phys.**A139**, 2O9 (1969).*Solution of the Multichannel Collision Problem by the Quasiparticle Method without the Use of Faddeev's Theory*(with P. Grassberger), Z. Physik**217**, 9 (1968).*Theorie der Dreiteilchenstöße*, Fachberichte der Physikertagung, (Karlsruhe 1968).*Relation between the Projection Operator Formalism and the Faddeev Theory*(with P. Grassberger), Z. Physik 220, 29 (1969).*Treatment of the Three- and Four-Nucleon-Systems by a Generalized Separable Potential Model*(with E.O. Alt and P. Grassberger), Phys. Rev. C1, 85 (1970).*Quasiparticle Calculations for a Three-Body Model with Local Potentials*(with E.O. Alt and P. Grassberger), Phys. Rev. D1, 2581 (1970).*Composite Particle Collisions in the Nonrelativistic Three-Body Theory*, in: Particle Physics, ed.: P. Urban, Acta Phys. Austriaca, Suppl. VI, 454 (1969).*Application of the Quasi-Particle Method to the Three-Body Problem: Calculations for a Model with Local Potentials*(with E.O. Alt and P. Grassberger), in Three-Body-Problem in Nuclear and Particle Physics, ed.: J.S.C. McKee and P.M. Rolph (Amsterdam 1970), p. 275.*Variational Method for the Effective Two-Particle Formulation of the Three-Body Collision Problem*(with E.O. Alt and P. Grassberger), Phys. Rev. D6, 432 (1972).*Variational Principles for N-Particle Scattering*(with E.O. Alt and P. Grassberger), Kabul Science, Vol. 2-3, No. 2 (1971).*Excited States in the Three-Body System*(with E.O. Alt and P. Grassberger), Nuovo Cimento, 8A, 211 (1972).*Three-Nucleon Calculations with Local Potentials*, Acta Physica Academiae Scientiarum Hungarica, 33, 2 (1973).*The Three-Body Problem*, in: Elementary Particle Physics, ed.: P. Urban, Acta Phys. Austriaca, Suppl. IX, 57 (1972).*Systematical and Practical Treatment of the Few-Body Problem*(with E.O. Alt and P. Grassberger), JINR, E4-6688, Dubna (1972).*Systematical Multiparticle Theory and its Application to the Four- Nucleon-Problem*(with E.O. Alt and P. Grassberger), in Few Particle Problems, ed.: I. Slaus et al. (Amsterdam 1972), p. 299.*Quasiparticle Calculations for the Three-Nucleon System*(with E.O. Alt), in Few Particle Problems, ed.: I. Slaus et al. (Amsterdam 1972), p. 314.*The N-Body Problem, in Progress in Particle Physics*, ed.: P. Urban, Acta Phys. Austriaca, Suppl. XIII, 679 (1974).*N-Body Integral Equations and Four-Nucleon Calculations*, Czech. J. Phys. B25, 251 (1975).*Comments on the Validity of the Unitary Pole Approximation*(with B.L.G. Bakker), Czech. J. Phys. B25, 259 (1975).*Criterion for the Validity of the Unitary Pole Approximation and Calculation of Correction Terms*(with B.L.G. Bakker), in Few-Body Problems in Nulcear and Particle Physics, ed.: R.J. Slobodrian (Quebec 1975), p. 5O9.*Influence of the Higher Partial Waves of Local Potentials on Three- Nucleon Observables*(with E.O. Alt), in Few-Body Problems in Nuclear and Particle Physics, ed.: R.J. Slobodrian (Quebec 1975), p. 511.*Dynamical Equations and Approximation Methods*, in: Few Body Dynamics, ed.: A.N. Mitra et al. (Amsterdam 1976), p. 540.*K Operators and Unitary Approximations for the Three-Body Problem*(with D.J. Kouri and F.S. Levin), Phys. Rev. C5, 1825 (1976).*Coulomb Corrections in Proton-Deuteron Scattering*(with E.O. Alt, H. Zankel and H. Ziegelmann), Phys. Rev. Lett. 37, 1537 (1976).*Dependence of Four-Body Observables on the Range of Effective Interactions like those of the Unitary Pole Approximation*(with R. Perne), Phys. Rev. Lett. 39, 788 (1977).*Coulomb Effects in Three-Body Reactions with Two Charged Particles*(with E.O. Alt and H. Ziegelmann), Phys. Rev. C17, 1981 (1978).*Two-Dimensional Integral Equation Solution of the Four-Nucleon System*(with H. Kröger), Phys. Rev. Lett. 40, 834 (1978).*General Concepts of Multichannel Collision Theory and Their Translation into the Matrix Formulation of Few-Body Integral Equations*, in: Few- Body Nuclear Physics, (IAEA, Wien 1978), p. 3.*Application of the Quasiparticle Formalism to Neutron-Deuteron Scattering with Local Soft-Core Nucleon-Nucleon Potentials*(with E.O. Alt), Phys. Rev. C18, 1088 (1978).*Solution of Four-Nucleon Integral Equations using the Effective UPA*(with R. Perne), in: Few Body Systems and Nuclear Forces I, ed.: H. Zingl et al. (Berlin 1978), p. 263.*Time Dependent Approach to the Collision of Two Charged Composite Particles*(with E.O. Alt), in: Few Body Systems and Nuclear Forces I, ed.: H. Zingl et al. (Berlin 1978), p. 373.*Scattering Amplitudes for Two Charged Fragments*(with E.O. Alt), in: Few Body Systems and Nuclear Forces I, ed.: H. Zingl et al. (Berlin 1978), p. 375.*Phase Shifts and Cross Sections Obtained in the Generalized UPA Treatment of Four Nucleon Integral Equations*(with R. Perne), unpublished.*Pion-Deuteron Scattering in a Three Body K-Matrix Formalism*(with W. Böttger and A.V. Lagu), Birmingham, 1979.*Integral Equations for N-Body Transition Operators and Related Two- Fragment Scattering Amplitudes*, in: Proceedings of the International Symposium on Few Particle Problems in Nuclear Physics, Dubna, USSR, 1979, p. 151.*Scattering Amplitudes and Integral Equations for the Collision of Two Charged Composite Particles*(with E.O. Alt), Phys. Rev. C21, 1733 (1980).*Quasiparticle Effects in the Two-Body Photodisintegration of He*(with W. Böttger and A. Casel), Physics Letters 92B, 11 (1980).*Pole Approximations in Few Body Systems*(with A. Casel and H. Haberzettl), Sesimbra, Portugal, June 1980.*Pole Approximations in Few Body Systems*(with A. Casel and H. Haberzettl), in: Proceedings of the Ninth International Conference on the Few Body Problem, Eugene, USA, 1980, p. 163.*Photodisintegration of He at Low Energies*(with A. Casel), in: Proceedings of the Ninth International Conference on the Few Body Problem, Eugene, USA, 1980, p. 33.*Effective Two-Body Equations for the Four-Body Problem with Exact Treatment of (2+2)-Subsystem Contributions*(with H. Haberzettl), Phys. Rev. C24, 359 (1981).*Unitary Pole Approximations and Expansions in Few-Body Systems*(with A. Casel and H. Haberzettl), Phys. Rev. C25, 1738 (1982).*Separable Pole Expansions in Four-Nucleon Bound State Calculations*(with H. Fiedeldey, H. Haberzettl, and S.A. Sofianos), Phys. Rev. C26, 228 (1982).*Four-Nucleon Scattering in the K-Matrix Approximation*(with H.Fiedeldey and S.A. Sofianos), in: Few Body Problems in Physics, Vol.II, ed.: B. Zeitnitz (Amsterdam 1984), p. 429.*The He Charge Form Factor: A Simple Theoretical Approach*(with E.A. Bartnik and H. Haberzettl), in: Few Body Problems in Physics, Vol.II, ed.: B. Zeitnitz (Amsterdam 1984), p. 279.*First Order Quasiparticle Calculations for Electron-Hydrogen Collisions*(with E.O. Alt and H. Bürger), in: Few Body Problems in Physics, Vol. II, ed.: B. Zeitnitz (Amsterdam 1984), p. 707.*Electron-Hydrogen Quasiparticle Calculations with Polarization Effect*(with H. Bürger), in: Few Body Problems in Physics, Vol.II, ed.: B. Zeitnitz (Amsterdam 1984), p. 709.*Does n-d Doublet Scattering Show Any Indication of the Efimov Effect Near the Three-Body Threshold?*(with V.S. Bhasin), in: Few Body Problems in Physics, Vol.II, ed.: B. Zeitnitz (Amsterdam 1984), p. 365.*The He Charge Form Factor: A Simple Explicit Formula*(with E.A. Bart- nik and H. Haberzettl), in: Collective Motion and Giant Resonances, ed.: Z. Wilhelmi et al., Warsaw, 1983.*Triad of Homogeneous and Inhomogeneous Three-Particle Lippmann- Schwinger Equations*(with F.S. Levin), Phys. Rev. C29, 1617 (1984).*Quasiparticle Integral Equations for the Electron-Hydrogen System*(with E.O. Alt and H. Bürger), Phys. Rev. A30, 2965 (1984).*Electron-Hydrogen Quasiparticle Calculations Including the Polarization Effect*(with H. Bürger), Phys. Rev. A33, 2284 (1986).*Calculation of Proton-Deuteron Phase Parameters Including the Coulomb Force*(with E.O. Alt and H. Ziegelmann), Nucl. Phys. A445, 429 (1985).*Four-Nucleon Scattering in the K-Matrix Approach with Improved Treatment of the (2+2) Channels*(with H. Fiedeldey and S.A. Sofianos), Phys. Rev. C32, 400 (1985).*Photodisintegration of He Including Exchange Currents*(with A. Casel), Czech. J. Phys. B36, 300 (1986).*The Two-Body Bound State Problem and Non-Singular Scattering Equations*(with E.A. Bartnik and H. Haberzettl), in: Proceedings of the X. European Symposium on the Dynamics of Few-Body Systems, Balatonfüred, Hungary, 1985, p. 169.*Electron Hydrogen Calculations Combining Close Coupling and Integral Equation Methods*(with W. Oehm), in: Proceedings of the X. European Symposium on the Dynamics of Few-Body Systems, Balatonfred, Hungary, 1985, p. 319.*Conference Summary*in: Proceedings of the X. European Symposium on the Dynamics of Few-Body Systems, Balatonfüred, Hungary, 1985, p. 433.*Foundations of Faddeev-AGS Theory*, in: Few-Body Methods: Principles & Applications, ed.: T.-K. Lim et al. (Singapore 1986), p. 3.*Four-Body Calculation of the Breakup Reaction He(p,pd) H*(with H. Fiedeldey and T.E. Mdlalose), Phys. Rev. C33, 784 (1986).*Deuteron on Deuteron H(d,nd)p Break-up in the AGS Formalism*(with T.E. Mdlalose and H. Fiedeldey), Nuclear Physics A457, 273 (1986).*Four-Nucleon Break-up Reactions*, in: Proceedings of the Internat. Work- shop on Few-Body Approaches to Nuclear Reactions in Tandem and Cyclotron Energy Regions, Tokyo, Japan, 1986, ed.: S. Oryu and T. Sawada (Singapore 1986), p. 37.*Comment on "Triad of Three-Particle Lippmann-Schwinger Equations"*(with F.S. Levin), Phys. Rev. C34, 1140 (1986).*The Triad of Three-Particle Lippmann-Schwinger Equations*(with F.S. Levin), in: Contributions "XI. International Conference on Few Body Systems in Particle and Nuclear Physics", Tokyo and Sendai, 1986, ed.: T. Sasakawa et al. (Tohoku 1986), p. 182.*Photodisintegration of He Including Exchange Currents*(with H. Fiedeldey and S.A. Sofianos), in: Contributions "XI. International Conference on Few Body Systems in Particle and Nuclear Physics", Tokyo and Sendai, 1986, ed.: T. Sasakawa et al. (Tohoku 1986), p. 356.*Competing Quasi Two-Body Processes in Four-Nucleon Break-up*(with H. Fiedeldey and T.E. Mdlalose), in: Contributions "XI. International Conference on Few Body Systems in Particle and Nuclear Physics, Tokyo and Sendai, 1986, ed.: T. Sasakawa et al.(Tohoku 1986), p. 366.*Conference Summary of the XI. Internat. Conference on Few Body Systems in Particle and Nuclear Physics*, Tokyo and Sendai, Japan, 1986, Nucl. Phys. A463, 531c (1987).*Integral Equation Approach to Few-Body Collision Problems*, in Proceedings of the European Workshop on Few-Body Physics, Rome, Oct. 7-11, 1986, ed.: C. Ciofi degli Atti et al [Few-Body Systems, Suppl. 1, 64 (1986)].*The Two-Body Bound State Problem and Non-Singular Scattering Equations*(with E.A. Bartnik and H. Haberzettl), Phys. Rev. C34, 1520 (1986).*Comment on a Recent Two-Body Model and Its Three-Body Implications*(with H. Haberzettl), Phys. Lett. B178, 335 (1986).*Neutron-Deuteron Scattering Calculations with W-Matrix Representation of the Two-Body Input*(with E.A. Bartnik, H. Haberzettl, Th. Januschke, and U. Kerwarth), Phys. Rev. C36, 1678 (1987).*Recent Few-Body Calculations Including Break-up and Photodisintegration Processes*, in: Proceedings of the International Conference on the Theory of Few Body and Quark-Hadronic Systems, Dubna, USSR, 1987, p.55.*Neutron-Deuteron Scattering Calculations with Optimal Separable Two-Body Input*(with E.A. Bartnik, H. Haberzettl, Th. Januschke, and U. Kerwath), in Proceedings of the XIth European Conference on Few-Body Physics, Fontevraud, Aug. 31 - Sep. 5, 1987, ed.: J.-L. Ballot and M. Fabre de la Ripelle [Few-Body Systems, Suppl. 2, 524 (1987)].*Conference Summary in Proceedings of the XIth European Conference on Few-Body Physics*, Fontevraud, Aug. 31 - Sep. 5, 1987, ed.: J.-L. Ballot and M. Fabre de la Ripelle [Few-Body Systems, Suppl. 2, 560 (1987)].*Deuteron on Deuteron Break-up in Regions Characterized by Competing Mechanisms*(with T.E. Mdlalose and H. Fiedeldey), Nuclear Physics A480, 215 (1988).*Equations of Motion Using the Dynamical Evolution of the Runge-Lenz Vector*(with E.A. Bartnik and H. Haberzettl), The Astrophysical Journal 334, 517 (1988).*Neutron-Deuteron Breakup Calculations with W-Matrix Representation of the Two-Body Input*(with T.N. Frank, H. Haberzettl, Th. Januschke, and U. Kerwath), Phys. Rev. C38, 1112 (1988).*Elastic Scattering, Break-up, and Photodisintegration Processes in Few- Body Systems*, in: Proceedings of the International Workshop on Micro- scopic Methods in Few-Body Systems Theory, Kalinin, USSR, 1988, p. 16O.*Photodisintegration of the α-Particle: Integral Equation Approach*(with S.A. Sofianos, H. Fiedeldey, and H. Haberzettl), in: Proceedings of the International Workshop on Microscopic Methods in Few-Body Systems Theory, Kalinin, USSR, 1988, p. 155.*Two-Fragment Photodisintegration of the α Particle*(with S.A. Sofianos, H. Fiedeldey, and H. Haberzettl), in: Contributed Papers, IV. International Symposium on Mesons and Light Nuclei, Bechyne Castle, CSSR, 1988, ed.: R. Mach et al., p. 176.*An improved Plane-Wave Approximation for Photodisintegration Amplitudes*(with Ch. von Ferber and H. Haberzettl), in: Proceedings of the 12th International Conference on Few Body Problems in Physics, Vancouver, Canada, 1989, p. G24.*Calculating Deuteron Photodisintegration Amplitudes Using Nonsingular Scattering Equations*(with Ch. von Ferber and H. Haberzettl), Phys. Rev. C40, 1923 (1989).*How Well Does the Four Body Calculation Describe the He(p,pd)p Reaction?*(with I. Slaus, M.B. Epstein, D.L. Shannon, T.E. Mdlalose, and H. Fiedeldey), in: Proceedings of the 12th International Conference on Few Body Problems in Physics, Vancouver, Canada, 1989, p. B19.*Proton-Induced Break-up of He at 35MeV*(with I. Slaus, M.B. Epstein, T.E. Mdlalose and H. Fiedeldey), Nucl. Phys. A515, 57 (1990).*Comment on "Unified Treatment of Bound-State and Scattering Problems"*(with E.A. Bartnik and H. Haberzettl), Phys. Rev. C41, 398 (1990).*Electron-Hydrogen Quasiparticle Calculations with Temkin-Lamkin Polarization Potential*(with H. Bürger and W. Oehm), Phys. Rev. A42, 6560 (199O).*Recent Results in Nuclear and Atomic Few-Body Theory*, Proc. XIIth European Few-Body Conference, Uzhgorod, USSR, 1990.*Formation Probability of the ( Be pμ)-Molecule*(with V.B. Belyaev and V.E. Kuzmichev), Muon Catalyzed Fusion 5/6, 185 (1990/91).*Photospaltung des Tritons*(with G. Reiss, T.N. Frank and H. Leeb), Fachtagung ÖPG, 1991.*Muonic Molecules of Light Nuclei*(with V.B. Belyaev, M. Decker, H. Haberzettl and L.J. Khaskilevitch), Proc. XIIIth European Few-Body Conference, Elba, 1991, ed.: C. Ciofi degli Atti [Few-Body Systems, Suppl. 6, 332 (1992)].*Three-Nucleon Break-up Processes*(with T.N. Frank and H. Haberzettl), Proc. XIIIth European Few-Body Conference, Elba, 1991, ed.: C. Ciofi degli Atti [Few-Body Systems, Suppl. 6, 270 (1992)].*Photodisintegration of He*(with S.A. Sofianos and H. Fiedeldey), Proc. XIIIth European Few-Body Conference, Elba, 1991, ed.: C. Ciofi degli Atti [Few-Body Systems, Suppl. 6, 276 (1992)].*Neutron-Deuteron Break-up Collisions*(with T.N. Frank and H. Haberzettl), in Contrib. XIIIth Internat. Few-Body Conference, Adelaide (Australia), 1992, p. 320.*Determination of the Neutron-Neutron Scattering Length a*(with K. Gebhardt, W. Jäger, E. Finckh, T.N. Frank, Th. Januschke and H. Haberzettel), in Contrib. XIIIth Internat. Few-Body Conference, Adelaide (Australia), 1992, p. 152.*The g + He L n + He(p + H) Reaction*(with S.A. Sofianos, and H. Fiedeldey), in Contrib. XIIIth Internat. Few-Body Conference, Adelaide (Australia), 1992, p. 266.*Photodisintegration of He in the Integrodifferential Equation Approach*(with S.A. Sofianos and H. Fiedeldey), Proc. National Conference on Physics of Few-Body and Quark-Hadronic Systems, Kharkov, Ukraine (1992).*Integral and Integrodifferential Equation Approach to Helium Photodisintegration*(with S.A. Sofianos and H. Fiedeldey), Proc. International Workshop on Few-Body Problems in Low-Energy Physics, Alma-Ata, Kazakhstan (1992).*Summary and Concluding Remarks*, International Workshop on Few-Body Problems in Low-Energy Physics, Alma-Ata, Kazakhstan (1992).*Photodisintegration of He in the Integrodifferential Equation Approach*(with S.A. Sofianos and H. Fiedeldey), Phys. Rev.**C48**, 2285 (1993).*Neutron-deuteron scattering calculations with the Paris potential using the W-matrix representation of the two-body input*(with Th. Januschke, T.N. Frank and H. Haberzettl), Phys. Rev.**C47**, 1401 (1993).*Experimental and Theoretical Investigations of the H(n,nnp) Reaction and of the Neutron-Neutron Scattering Length*(with K. Gebhardt, W. Jäger, C. Jeitner, M. Vitz, E. Finckh, T.N. Frank, Th. Januschke and H. Haberzettl), Nucl. Phys.**A561**, 232 (1993).*Integral Equation Calculations for the Photodisintegration Process He(γ,n) He*(with S.A. Sofianos, H. Fiedeldey and G. Ellerkmann), Phys. Rev.**C53**, 2638 (1996).