TY - JOUR AU - Vosmanský, Jaromír TI - Certain higher monotonicity properties of $i$-th derivatives of solutions of $y''+a(t)y'+b(t)y=0$ JO - Archivum mathematicum PY - 1974 SP - 87 EP - 102 VL - 10 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ARM_1974__10_2_a2/ LA - en ID - ARM_1974__10_2_a2 ER -