@article{PMIHES_1969__36__165_0,
     author = {Shreeram Abhyankar and Tzoung Tsieng Moh and Marius van der Put},
     title = {Invariants of analytic local rings},
     journal = {Publications Math\'ematiques de l'IH\'ES},
     pages = {165--193},
     year = {1969},
     publisher = {Institut des Hautes \'Etudes Scientifiques},
     volume = {36},
     doi = {10.1007/BF02684603},
     mrnumber = {260728},
     zbl = {0193.00402},
     language = {en},
     url = {https://pmihes.centre-mersenne.org/articles/10.1007/BF02684603/}
}