%0 Journal Article %A P. V. Bibikov %T On contact equivalence of Abel cubic differential equations of the second order %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 2016 %P 93-96 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_2016_3_a9/ %G ru %F IVM_2016_3_a9