TY - JOUR AU - Kováčová, Monika TI - Property $A$ of the $(n+1)^{th}$ order differential equation $\left [\frac 1{r_1(t)}\left (x^{(n)}(t)+p(t)x(t)\right )\right ]' = f(t,x(t),\cdots ,x^{(n)}(t))$ JO - Archivum mathematicum PY - 2000 SP - 487 EP - 498 VL - 36 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ARM_2000__36_5_a15/ LA - en ID - ARM_2000__36_5_a15 ER -