@article{PMIHES_1969__36__165_0,
     author = {Abhyankar, Shreeram and Moh, Tzoung Tsieng and van der Put, Marius},
     title = {Invariants of analytic local rings},
     journal = {Publications Math\'ematiques de l'IH\'ES},
     pages = {165--193},
     publisher = {Institut des Hautes \'Etudes Scientifiques},
     volume = {36},
     year = {1969},
     mrnumber = {260728},
     zbl = {0193.00402},
     language = {en},
     url = {http://www.numdam.org/item/PMIHES_1969__36__165_0/}
}