@article{CMH_1979__54_139805,
     author = {Harsh V. Pittie},
     title = {The secondary characteristic classes of parabolic foliations.},
     journal = {Commentarii mathematici Helvetici},
     pages = {601--614},
     publisher = {mathdoc},
     volume = {54},
     year = {1979},
     zbl = {0435.57007},
     url = {http://geodesic.mathdoc.fr/item/CMH_1979__54_139805/}
}