@article{CMH_1985__60_140017,
     author = {Steven Hurder},
     title = {Foliation dynamics and leaf invariants.},
     journal = {Commentarii mathematici Helvetici},
     pages = {319--336},
     publisher = {mathdoc},
     volume = {60},
     year = {1985},
     zbl = {0604.57021},
     url = {http://geodesic.mathdoc.fr/item/CMH_1985__60_140017/}
}