TY  - JOUR
AU  - E. P. Golubeva
TI  - On the period length of the continued fraction expansion of a quadratic irrational and the class number of real quadratic fields
JO  - Zapiski Nauchnykh Seminarov POMI
PY  - 1987
SP  - 72
EP  - 81
VL  - 160
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/ZNSL_1987_160_a6/
LA  - ru
ID  - ZNSL_1987_160_a6
ER  -