G. Semenoff, H. Matsumoto, H. Umezawa, “A perturbative look at the dynamics of extended systems in quantum field theory”, Journal of Mathematical Physics, 22:10 (1981), 2208
A. V. Berkov, Yu. P. Nikitin, I. L. Rosental, “Two‐Dimensional Field Theories”, Fortschr. Phys., 29:7 (1981), 303
H. Matsumoto, N. J. Papastamatiou, G. Semenoff, H. Umezawa, “Asymptotic condition and Hamiltonian in quantum field theory with extended objects”, Phys. Rev. D, 24:2 (1981), 406
S.N.M Ruijsenaars, “Integrable quantum field theories and Bogoliubov transformations”, Annals of Physics, 132:2 (1981), 328
H. Yamanaka, H. Matsumoto, H. Umezawa, “Role of the Wigner rotation in quantum field theory with extended objects”, Phys. Rev. D, 24:10 (1981), 2607
H. C. Fogedby, “Classical and quantum aspects of the continuous Heisenberg chain atT=0”, Z. Physik B - Condensed Matter, 41:2 (1981), 115
B. Berg, Lecture Notes in Physics, 126, Complex Analysis, Microlocal Calculus and Relativistic Quantum Theory, 1980, 316
H C Fogedby, “The spectrum of the continuous isotropic quantum Heisenberg chain: quantum solitons as magnon bound states”, J. Phys. C: Solid State Phys., 13:9 (1980), L195
A.R. Bishop, J.A. Krumhansl, S.E. Trullinger, “Solitons in condensed matter: A paradigm”, Physica D: Nonlinear Phenomena, 1:1 (1980), 1
L. D. Faddeev, Topics in Current Physics, 17, Solitons, 1980, 339