%0 Journal Article
%A K. Firoozbakhsn
%A G. Ahmadi
%T First strain gradient theory of granular materials
%J Theoretical and applied mechanics
%D 1980
%P 50 
%V 6
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TAM_1980_6_1_a3/
%G en
%F TAM_1980_6_1_a3