%0 Journal Article %A A. N. Dheyab %T An effect of the slope layer in sheet sample on a strength for negative coefficient of a biaxial loading factor of a sample %J Journal of computational and engineering mathematics %D 2016 %P 27-36 %V 3 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/JCEM_2016_3_1_a3/ %G en %F JCEM_2016_3_1_a3