@article{10_4153_CJM_1972_090_8,
     author = {Kodama, Tetsuo},
     title = {Residue {Free} {Differentials} and the {Cartier} {Operator} for {Algebraic} {Function} {Fields} of one {Variable}},
     journal = {Canadian journal of mathematics},
     pages = {905--914},
     year = {1972},
     volume = {24},
     number = {5},
     doi = {10.4153/CJM-1972-090-8},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1972-090-8/}
}