%0 Journal Article %A Z. Belhachmi %A J.-M. Sac-Epée %A S. Tahir %T Locking-Free Finite Elements for Unilateral Crack Problems in Elasticity %J Mathematical modelling of natural phenomena %D 2009 %P 1-20 %V 4 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.1051/mmnp/20094101/ %R 10.1051/mmnp/20094101 %G en %F MMNP_2009_4_1_a0