@article{10_4153_CMB_1988_034_8,
     author = {Butler, G. J. and Timourian, J. G. and Viger, C.},
     title = {The {Rank} {Theorem} for {Locally} {Lipschitz} {Continuous} {Functions}},
     journal = {Canadian mathematical bulletin},
     pages = {217--226},
     year = {1988},
     volume = {31},
     number = {2},
     doi = {10.4153/CMB-1988-034-8},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1988-034-8/}
}