TY  - JOUR
AU  - V. A. Malyshev
TI  - Periods of quadratic irrationalities, and torson of elliptic curves
JO  - Algebra i analiz
PY  - 2003
SP  - 177
EP  - 203
VL  - 15
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AA_2003_15_4_a6/
LA  - ru
ID  - AA_2003_15_4_a6
ER  -