TY  - JOUR
AU  - K. V. Golubev
TI  - A differential equation on the cover function of the hexagonal lattice by the trivalent tree
JO  - Fundamentalʹnaâ i prikladnaâ matematika
PY  - 2013
SP  - 91
EP  - 94
VL  - 18
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/FPM_2013_18_6_a4/
LA  - ru
ID  - FPM_2013_18_6_a4
ER  -