%0 Journal Article
%A I. V. Skrypnik
%T Periods of $\mathfrak{A}$-closed forms
%J Doklady Akademii Nauk
%D 1965
%P 772-773
%V 160
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1965_160_4_a8/
%G ru
%F DAN_1965_160_4_a8