@article{CM_1974__28_3_305_0,
     author = {Lejeune-Jalabert, M. and Teissier, B.},
     title = {Normal cones and sheaves of relative jets},
     journal = {Compositio Mathematica},
     pages = {305--331},
     publisher = {Noordhoff International Publishing},
     volume = {28},
     number = {3},
     year = {1974},
     mrnumber = {379897},
     zbl = {0337.14013},
     language = {en},
     url = {http://archive.numdam.org/item/CM_1974__28_3_305_0/}
}