TY - JOUR AU - E. Graczyńska AU - A. Wroński TI - On weak Agassiz systems of algebras JO - Colloquium Mathematicum PY - 1978 SP - 9 EP - 12 VL - 40 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/cm-40-1-9-12/ DO - 10.4064/cm-40-1-9-12 LA - en ID - 10_4064_cm_40_1_9_12 ER -