%0 Journal Article
%A V. I. Kasatochkin
%A N. K. Larina
%T An investigation of thehumic acid structure in fossil coals
%J Doklady Akademii Nauk
%D 1957
%P 139-142
%V 114
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1957_114_1_a33/
%G ru
%F DAN_1957_114_1_a33