@article{1250126655,
author = {Phillips, John},
title = {The holonomic imperative and the homotopy groupoid of a foliated manifold},
journal = {Rocky Mountain J. Math.},
volume = {17},
number = {4},
year = {1987},
pages = { 151-166},
language = {en},
url = {http://dml.mathdoc.fr/item/1250126655}
}
Phillips, John. The holonomic imperative and the homotopy groupoid of a foliated manifold. Rocky Mountain J. Math., Tome 17 (1987) no. 4, pp. 151-166. http://gdmltest.u-ga.fr/item/1250126655/