%0 Journal Article %A Háčik, Miloš %T Generalization of amplitude phase and accompanying differential equation %J Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica %D 1971 %P 7-17 %V 11 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/AUPO_1971__11_1_a0/ %G en %F AUPO_1971__11_1_a0