%0 Journal Article %A Drápal, Aleš %A Kinyon, Michael %T Normality, nuclear squares and Osborn identities %J Commentationes Mathematicae Universitatis Carolinae %D 2020 %P 481-500 %V 61 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.14712/1213-7243.2020.038/ %R 10.14712/1213-7243.2020.038 %G en %F 10_14712_1213_7243_2020_038