TY - JOUR AU - I. D. Tveritinov TI - Bogolyubov transformations that correspond to symplectic transformations JO - Vestnik Moskovskogo universiteta. Matematika, mehanika PY - 2002 SP - 9 EP - 14 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/VMUMM_2002_4_a1/ LA - ru ID - VMUMM_2002_4_a1 ER -