@article{GDZPPN00248949X,
title = {The Identity Component of the Leaf Preserving Diffeomorphism Group is Perfect.},
journal = {Monatshefte f\"ur Mathematik},
volume = {119},
year = {1995},
pages = {289-306},
zbl = {0847.57033},
url = {http://dml.mathdoc.fr/item/GDZPPN00248949X}
}
Rybicki, Tomasz. The Identity Component of the Leaf Preserving Diffeomorphism Group is Perfect.. Monatshefte für Mathematik, Tome 119 (1995) pp. 289-306. http://gdmltest.u-ga.fr/item/GDZPPN00248949X/