%0 Journal Article
%A N. B. Filonenko
%A L. I. Mishina
%T Ageing of boron nitride crystals as investigated by the chemical etching method
%J Doklady Akademii Nauk
%D 1970
%P 1088-1089
%V 195
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1970_195_5_a19/
%G ru
%F DAN_1970_195_5_a19