%0 Journal Article
%A I. G. Portnov
%T A rigorous solution to the problem of freezing when the temperature at a fixed boundary is subject to arbitrary variation
%J Doklady Akademii Nauk
%D 1962
%P 559-562
%V 143
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1962_143_3_a16/
%G ru
%F DAN_1962_143_3_a16