TY  - JOUR
AU  - Barone, F.
AU  - Grassini, R.
AU  - Mendella, G.
TI  - A unified approach to constrained mechanical systems as implicit differential equations
JO  - Annales de l'I.H.P. Physique théorique
PY  - 1999
SP  - 515
EP  - 546
VL  - 70
IS  - 6
PB  - Gauthier-Villars
UR  - http://www.numdam.org/item/AIHPA_1999__70_6_515_0/
LA  - en
ID  - AIHPA_1999__70_6_515_0
ER  -