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@article{AMLG_1983__23_138006, author = {T.B. Flannagan}, title = {A note on a proof of {Sherpherdson.}}, journal = {Archiv f\"ur mathematische Logik und Grundlagenforschung}, pages = {55--60}, publisher = {mathdoc}, volume = {23}, year = {1983}, zbl = {0544.03030}, url = {http://geodesic.mathdoc.fr/item/AMLG_1983__23_138006/} }
T.B. Flannagan. A note on a proof of Sherpherdson.. Archiv für mathematische Logik und Grundlagenforschung, Tome 23 (1983), pp. 55-60. http://geodesic.mathdoc.fr/item/AMLG_1983__23_138006/