TY  - BOOK
AU  - Leon, Manuel De
AU  - Rodrigues, Paulo R.
TI  - Generalized classical mechanics and field theory; a geometrical approach of Lagrangian and Hemiltonian formalisms involving higher order derivatives
T2  - North-Holland Mathematics studies 
U1  - 530.1 
PY  - 1985///
CY  - Amsterdam
PB  - North-Holland
ER  -