TY  - JOUR
AU  - V. V. Golovchanskii
AU  - M. N. Smotrov
TI  - Multiplicative characteristics of function for  the number of classes of primitive hyperbolic elements in the group $\Gamma_0(N)$ by level~$N$
JO  - Dalʹnevostočnyj matematičeskij žurnal
PY  - 2009
SP  - 48
EP  - 73
VL  - 9
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DVMG_2009_9_1_a5/
LA  - ru
ID  - DVMG_2009_9_1_a5
ER  -