%0 Journal Article %A F. Alharbi %A V. Zakalyukin %T Quasi corner singularities %J Informatics and Automation %D 2010 %P 7-20 %V 270 %I mathdoc %U http://geodesic.mathdoc.fr/item/TRSPY_2010_270_a0/ %G en %F TRSPY_2010_270_a0