Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MZ_1962__79_170046, author = {R. Venkataraman}, title = {Symmetric ordered sets.}, journal = {Mathematische Zeitschrift}, pages = {10--20}, publisher = {mathdoc}, volume = {79}, year = {1962}, zbl = {0131.01204}, url = {http://geodesic.mathdoc.fr/item/MZ_1962__79_170046/} }
R. Venkataraman. Symmetric ordered sets.. Mathematische Zeitschrift, Tome 79 (1962), pp. 10-20. http://geodesic.mathdoc.fr/item/MZ_1962__79_170046/