@article{PMIHES_1959__3__5_0,
     author = {Barry Mazur},
     title = {The definition of equivalence of combinatorial imbeddings},
     journal = {Publications Math\'ematiques de l'IH\'ES},
     pages = {5--17},
     year = {1959},
     publisher = {Institut des Hautes \'Etudes Scientifiques},
     volume = {3},
     doi = {10.1007/BF02684387},
     mrnumber = {116346},
     zbl = {0119.38702},
     language = {en},
     url = {https://pmihes.centre-mersenne.org/articles/10.1007/BF02684387/}
}