TY  - JOUR
AU  - M. Ouannasser
TI  - A Remark on the Class A1 (in French)
JO  - Mathematica balkanica
PY  - 1990
SP  - 203
VL  - 4
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MABA_1990_4_2_a8/
ID  - MABA_1990_4_2_a8
ER  -