TY - JOUR AU - H. Żołądek TI - On relations between additive and multiplacative clustering operators JO - Studia Mathematica PY - 1988 SP - 197 EP - 207 VL - 88 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/sm-88-3-197-207/ DO - 10.4064/sm-88-3-197-207 LA - en ID - 10_4064_sm_88_3_197_207 ER -