TY - JOUR AU - Drápal, Aleš AU - Kinyon, Michael TI - Normality, nuclear squares and Osborn identities JO - Commentationes Mathematicae Universitatis Carolinae PY - 2020 SP - 481 EP - 500 VL - 61 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.14712/1213-7243.2020.038/ DO - 10.14712/1213-7243.2020.038 LA - en ID - 10_14712_1213_7243_2020_038 ER -