%0 Journal Article %A Kratz, Werner %T Asymptotic behaviour of Riccati's differential equation associated with self-adjoint scalar equations of even order %J Czechoslovak Mathematical Journal %D 1988 %P 351-365 %V 38 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1988.102230/ %R 10.21136/CMJ.1988.102230 %G en %F 10_21136_CMJ_1988_102230