TY - JOUR AU - W. Nitka TI - Self-dependent elements in abstract algebras JO - Colloquium Mathematicum PY - 1961 SP - 15 EP - 17 VL - 8 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/cm-8-1-15-17/ DO - 10.4064/cm-8-1-15-17 LA - en ID - 10_4064_cm_8_1_15_17 ER -