@article{02100252,
title = {Higher-order preconnections in synthetic differential geometry of jet bundles.},
journal = {Beitr\"age zur Algebra und Geometrie},
volume = {45},
year = {2004},
pages = {677-696},
zbl = {1071.58004},
language = {en},
url = {http://dml.mathdoc.fr/item/02100252}
}
Nishimura, Hirokazu. Higher-order preconnections in synthetic differential geometry of jet bundles.. Beiträge zur Algebra und Geometrie, Tome 45 (2004) pp. 677-696. http://gdmltest.u-ga.fr/item/02100252/