%0 Journal Article %A V. S. Vladimirov %A A. A. Logunov %A S. P. Novikov %T Nikolai Nikolaevich Bogolyubov (on his 80th birthday) %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1989 %P 1-10 %V 44 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_1989_44_5_a0/ %G en %F RM_1989_44_5_a0