TY  - JOUR
AU  - W.N. EVERITT
TI  - Singular Differential Equations I: The Even Order Case.
JO  - Mathematische Annalen
PY  - 1964
SP  - 9
EP  - 24
VL  - 156
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MAN_1964__156_161202/
ID  - MAN_1964__156_161202
ER  -