@article{BSMF_1978__106__161_0,
     author = {Tort, Jean-Ren\'e},
     title = {Sur deux invariants d'un corps de niveau fini},
     journal = {Bulletin de la Soci\'et\'e Math\'ematique de France},
     pages = {161--168},
     publisher = {Soci\'et\'e math\'ematique de France},
     volume = {106},
     year = {1978},
     doi = {10.24033/bsmf.1867},
     zbl = {0417.12005},
     mrnumber = {507747},
     language = {fr},
     url = {http://www.numdam.org/articles/10.24033/bsmf.1867/}
}