%0 Journal Article
%A G. A. Mesyats
%T Extons in rule of three points
%J Doklady Akademii Nauk
%D 1994
%P 610-612
%V 336
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1994_336_5_a9/
%G ru
%F DAN_1994_336_5_a9