%0 Journal Article
%A A. V. Gladkii
%T On Definitions of a Length of a Circumference and an Area of a Circle
%J Matematičeskoe obrazovanie
%D 2000
%P 41-50
%V 15
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MO_2000_15_4_a3/
%G ru
%F MO_2000_15_4_a3