%0 Journal Article %A Ellis, Homer G. %T Solvability of Ordinary Differential Equations Near Singular Points: An Analytic Case %J Canadian journal of mathematics %D 1967 %P 1303-1313 %V 19 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1967-119-0/ %R 10.4153/CJM-1967-119-0 %F 10_4153_CJM_1967_119_0