@article{10_4064_cm_4_1_13_29,
     author = {\'Akos Cs\'asz\'ar},
     title = {Sur la structure des ensembles de niveau des fonctions r\'eelles \`a une variable},
     journal = {Colloquium Mathematicum},
     pages = {13--29},
     publisher = {mathdoc},
     volume = {4},
     number = {1},
     year = {1956},
     doi = {10.4064/cm-4-1-13-29},
     language = {fr},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-4-1-13-29/}
}