%0 Journal Article
%A V. V. Golovchanskii
%A M. N. Smotrov
%T Multiplicative characteristics of function for  the number of classes of primitive hyperbolic elements in the group $\Gamma_0(N)$ by level~$N$
%J Dalʹnevostočnyj matematičeskij žurnal
%D 2009
%P 48-73
%V 9
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DVMG_2009_9_1_a5/
%G ru
%F DVMG_2009_9_1_a5