Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{PORMA_1956__15_1_114761, author = {McCarthy, Paul J.}, title = {Representation by quadratic forms in valuation rings}, journal = {Portugaliae mathematica}, pages = {1--7}, publisher = {mathdoc}, volume = {15}, number = {1}, year = {1956}, mrnumber = {0082509}, zbl = {0071.27202}, language = {en}, url = {http://geodesic.mathdoc.fr/item/PORMA_1956__15_1_114761/} }
McCarthy, Paul J. Representation by quadratic forms in valuation rings. Portugaliae mathematica, Tome 15 (1956) no. 1, pp. 1-7. http://geodesic.mathdoc.fr/item/PORMA_1956__15_1_114761/