%0 Journal Article %T To the 70th birthday of Professor V.\,I.~Burenkov %J Eurasian mathematical journal %D 2012 %P 7-10 %V 3 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/EMJ_2012_3_3_a1/ %G en %F EMJ_2012_3_3_a1