%0 Journal Article %A A. Y. Abdelwanis %T On triple derivations of partially ordered sets %J Ufa mathematical journal %D 2019 %P 108-114 %V 11 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/UFA_2019_11_4_a8/ %G en %F UFA_2019_11_4_a8