@article{IM_1985__82_143278,
     author = {M., Randell, R. Falk},
     title = {The lower central series of a fiber-type arrangement.},
     journal = {Inventiones mathematicae},
     pages = {77--88},
     publisher = {mathdoc},
     volume = {82},
     year = {1985},
     zbl = {0574.55010},
     url = {http://geodesic.mathdoc.fr/item/IM_1985__82_143278/}
}