%0 Journal Article %A Ráb, Miloš %T Asymptotic expansions of solutions of the equation $(p(x)y')'-q(x)y=0$ with complex-valued coefficients %J Archivum mathematicum %D 1972 %P 1-15 %V 08 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/ARM_1972__8_1_a0/ %G en %F ARM_1972__8_1_a0