TY  - JOUR
AU  - Al-Bassam, M.A.
TI  - On the existence of series solution of differential equations of generalized order
JO  - Portugaliae mathematica
PY  - 1970
SP  - 5
EP  - 11
VL  - 29
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/PORMA_1970__29_1_115103/
LA  - en
ID  - PORMA_1970__29_1_115103
ER  -