Problems of quantum field theory (based on the Proceedings of the Ninth International Symposium on Problems of Quantum Field Theory, Laboratory of Theoretical Physics, JINR, Dubna, 24-28 April 1990)
M. K. Volkov, A. E. Dorokhov, D. I. KazakovТом 22 Выпуск 1, JANUARY-FEBRUARY 1991

