TY  - JOUR
AU  - E. P. Golubeva
TI  - On the length of the period of a quadratic irrationality
JO  - Sbornik. Mathematics
PY  - 1985
SP  - 119
EP  - 128
VL  - 51
IS  - 1
UR  - http://geodesic.mathdoc.fr/item/SM_1985_51_1_a7/
LA  - en
ID  - SM_1985_51_1_a7
ER  -