TY  - JOUR
AU  - Lorch, Lee
TI  - Two elementary remarks on non-linear differential equations of the second order
JO  - Archivum mathematicum
PY  - 1969
SP  - 173
EP  - 175
VL  - 05
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/ARM_1969__5_4_a1/
LA  - en
ID  - ARM_1969__5_4_a1
ER  -