%0 Journal Article %A F. M. Ablayev %A K. R. Khadiev %T Clarification of the hierarchy of classes of boolean functions representable as a~k-OBDD branching program models %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 2013 %P 56-61 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_2013_3_a5/ %G ru %F IVM_2013_3_a5