%0 Journal Article %A V. Kiryakova %T On Some of Professor Peter Rusev's Contributions %J Mathematica balkanica %D 2012 %P 1 %V 26 %N 1-2 %I mathdoc %U http://geodesic.mathdoc.fr/item/MABA_2012_26_1-2_a0/ %F MABA_2012_26_1-2_a0