%0 Journal Article %A Vadim Komkov %T Continuability and estimates of solutions of (a(t)ψ(x)x')' + c(t)f(x) = 0 %J Annales Polonici Mathematici %D 1974 %P 125-137 %V 30 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/ap-30-2-125-137/ %R 10.4064/ap-30-2-125-137 %G en %F 10_4064_ap_30_2_125_137