TY - JOUR AU - Dorninger, Dietmar AU - Länger, Helmut AU - Maczyński, Maciej TI - Ring-like structures with unique symmetric difference related to quantum logic JO - Discussiones Mathematicae. General Algebra and Applications PY - 2001 SP - 239 EP - 253 VL - 21 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DMGAA_2001_21_2_a8/ LA - en ID - DMGAA_2001_21_2_a8 ER -