TY  - JOUR
AU  - E. S. Usachev
TI  - Asymptotic properties and the approximation of stochastic models of teaching
JO  - Doklady Akademii Nauk
PY  - 1968
SP  - 282
EP  - 284
VL  - 182
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1968_182_2_a11/
LA  - ru
ID  - DAN_1968_182_2_a11
ER  -