%0 Journal Article %A M. V. Vasil'eva %A N. V. Efimov %A P. K. Rashevskii %T Grigorii Borisovich Gurevich (on his eightieth birthday) %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1979 %P 277-279 %V 34 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_1979_34_2_a25/ %G en %F RM_1979_34_2_a25