TY - JOUR AU - ERNST S. SELMER TI - The exceptional points of a cubic curve which is symmetric in the homogeneous variables JO - Mathematica Scandinavica PY - 1954 SP - 227 EP - 236 VL - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MS2_1954__2_165545/ ID - MS2_1954__2_165545 ER -