TY - JOUR AU - V. S. Vladimirov AU - A. A. Logunov AU - S. P. Novikov TI - Nikolai Nikolaevich Bogolyubov (on his 80th birthday) JO - Trudy Matematicheskogo Instituta imeni V.A. Steklova PY - 1989 SP - 1 EP - 10 VL - 44 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/RM_1989_44_5_a0/ LA - en ID - RM_1989_44_5_a0 ER -