%0 Journal Article %A Zeman, Jiří %T On some continuities of phases theory and WKB method for linear differential equation of the second order %J Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica %D 1991 %P 39-47 %V 30 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/AUPO_1991__30_1_a3/ %G en %F AUPO_1991__30_1_a3