%0 Journal Article %A Sh. Ikehata %T On separable and $H$-separable polynomials in skew polynomial rings of several variables %J Algebra and discrete mathematics %D 2010 %P 87-96 %V 10 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/ADM_2010_10_2_a6/ %G en %F ADM_2010_10_2_a6