TY - JOUR AU - Rostás, Kristína TI - Minimal and maximal solutions of fourth order iterated differential equations with singular nonlinearity JO - Archivum mathematicum PY - 2011 SP - 23 EP - 33 VL - 47 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ARM_2011__47_1_a2/ LA - en ID - ARM_2011__47_1_a2 ER -