@article{PMIHES_1976__46__15_0,
     author = {Joseph Lipman},
     title = {The {Picard} group of a scheme over an {Artin} ring},
     journal = {Publications Math\'ematiques de l'IH\'ES},
     pages = {15--86},
     year = {1976},
     publisher = {Institut des Hautes \'Etudes Scientifiques},
     volume = {46},
     doi = {10.1007/BF02684318},
     mrnumber = {58 #10938},
     zbl = {0436.14012},
     language = {en},
     url = {https://pmihes.centre-mersenne.org/articles/10.1007/BF02684318/}
}