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@article{MZ_1962__79_170047, author = {R. Venkataraman and N. Sankaran}, title = {A generalization of the ordered group of integers.}, journal = {Mathematische Zeitschrift}, pages = {21--31}, publisher = {mathdoc}, volume = {79}, year = {1962}, zbl = {0146.25802}, url = {http://geodesic.mathdoc.fr/item/MZ_1962__79_170047/} }
R. Venkataraman; N. Sankaran. A generalization of the ordered group of integers.. Mathematische Zeitschrift, Tome 79 (1962), pp. 21-31. http://geodesic.mathdoc.fr/item/MZ_1962__79_170047/