%0 Journal Article %A Wiesław Cupała %T Some estimates concerning the Zeeman effect %J Studia Mathematica %D 1993 %P 13-23 %V 105 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm-105-1-13-23/ %R 10.4064/sm-105-1-13-23 %G en %F 10_4064_sm_105_1_13_23