@article{701419,
title = {Higher order almost tangent geometry and non-autonomous Lagrangian dynamics},
booktitle = {Proceedings of the Winter School "Geometry and Physics"},
series = {GDML\_Books},
publisher = {Circolo Matematico di Palermo},
address = {Palermo},
year = {1987},
pages = {[157]-171},
mrnumber = {MR0946722},
zbl = {0683.53028},
url = {http://dml.mathdoc.fr/item/701419}
}
de León, Manuel; Rodrigues, Paulo R. Higher order almost tangent geometry and non-autonomous Lagrangian dynamics, dans Proceedings of the Winter School "Geometry and Physics", GDML_Books, (1987), pp. [157]-171. http://gdmltest.u-ga.fr/item/701419/