%0 Journal Article
%A V. A. Malyshev
%T Periods of quadratic irrationalities, and torson of elliptic curves
%J Algebra i analiz
%D 2003
%P 177-203
%V 15
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/AA_2003_15_4_a6/
%G ru
%F AA_2003_15_4_a6