%0 Journal Article
%A I. Sh. Kalimullin
%A M. Kh. Faizrakhmanov
%T A hierarchy of classes of families and $n$-low degrees
%J Algebra i logika
%D 2015
%P 536-541
%V 54
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/AL_2015_54_4_a8/
%G ru
%F AL_2015_54_4_a8