TY - JOUR AU - Ewa Tyszkowska TI - On $pq$-hyperelliptic Riemann surfaces JO - Colloquium Mathematicum PY - 2005 SP - 115 EP - 120 VL - 103 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/cm103-1-12/ DO - 10.4064/cm103-1-12 LA - fr ID - 10_4064_cm103_1_12 ER -