@article{01702496,
title = {Integrator for Lagrangian dynamics.},
journal = {Balkan Journal of Geometry and its Applications (BJGA)},
volume = {6},
year = {2001},
pages = {109-115},
zbl = {1040.70002},
language = {en},
url = {http://dml.mathdoc.fr/item/01702496}
}
Udrişte, C.; Postolache, M.; Ţevy, I. Integrator for Lagrangian dynamics.. Balkan Journal of Geometry and its Applications (BJGA), Tome 6 (2001) pp. 109-115. http://gdmltest.u-ga.fr/item/01702496/