%0 Journal Article %A M. Ouannasser %T A Remark on the Class A1 (in French) %J Mathematica balkanica %D 1990 %P 203 %V 4 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/MABA_1990_4_2_a8/ %F MABA_1990_4_2_a8