%0 Journal Article %A F. N. Garif'yanov %T On three difference equations in a plane with a $T$-shaped cut %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 2006 %P 11-14 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_2006_2_a1/ %G ru %F IVM_2006_2_a1