%0 Journal Article %A Thomas, T. Y. %A Titt, E. W. %T On the elementary solution of the general linear differential equation of the second order with analytic coefficients %J Journal de Mathématiques Pures et Appliquées %D 1939 %P 217-248 %V 18 %I Gauthier-Villars %U http://archive.numdam.org/item/JMPA_1939_9_18__217_0/ %G en %F JMPA_1939_9_18__217_0