TY  - JOUR
AU  - Paulo R. Rodrigues
AU  - Manuel de Leon de
TI  - Comments On The Canonical Formalism Of Time-Dependent Higher Order Lagrangians.
JO  - Revista colombiana de matematicas
PY  - 1987
SP  - 47
EP  - 64
VL  - 21
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/RCM_1987__21_1_181779/
ID  - RCM_1987__21_1_181779
ER  -