TY - JOUR AU - Thomas, T. Y. AU - Titt, E. W. TI - On the elementary solution of the general linear differential equation of the second order with analytic coefficients JO - Journal de Mathématiques Pures et Appliquées PY - 1939 SP - 217 EP - 248 VL - 18 PB - Gauthier-Villars UR - http://archive.numdam.org/item/JMPA_1939_9_18__217_0/ LA - en ID - JMPA_1939_9_18__217_0 ER -