TY - JOUR AU - T IwiƄski TI - On a certain class of linear differential equations JO - Applicationes Mathematicae PY - 1963 SP - 59 EP - 76 VL - 7 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/am-7-1-59-76/ DO - 10.4064/am-7-1-59-76 LA - en ID - 10_4064_am_7_1_59_76 ER -