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@article{MS2_1994__74_1_167288, author = {Frederick W. Call}, title = {A {Theorem} of {Grothendieck} {Using} {Picard} {Groups} for the {Algebraist.}}, journal = {Mathematica Scandinavica}, pages = {161--183}, publisher = {mathdoc}, volume = {74}, number = {1}, year = {1994}, zbl = {0827.13006}, url = {http://geodesic.mathdoc.fr/item/MS2_1994__74_1_167288/} }
Frederick W. Call. A Theorem of Grothendieck Using Picard Groups for the Algebraist.. Mathematica Scandinavica, Tome 74 (1994) no. 1, pp. 161-183. http://geodesic.mathdoc.fr/item/MS2_1994__74_1_167288/