%0 Journal Article %A A. A. Kilbas %T Operators of potential type with logarithmic kernels of arbitrary nonnegative orders %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 1979 %P 28-37 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_1979_1_a4/ %G ru %F IVM_1979_1_a4