Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{PORMA_1990__47_2_115709, author = {Fukuda, Komei and Tamura, Akihisa}, title = {Dualities in signed vector systems}, journal = {Portugaliae mathematica}, pages = {151--165}, publisher = {mathdoc}, volume = {47}, number = {2}, year = {1990}, mrnumber = {1090067}, zbl = {0739.05022}, language = {en}, url = {http://geodesic.mathdoc.fr/item/PORMA_1990__47_2_115709/} }
Fukuda, Komei; Tamura, Akihisa. Dualities in signed vector systems. Portugaliae mathematica, Tome 47 (1990) no. 2, pp. 151-165. http://geodesic.mathdoc.fr/item/PORMA_1990__47_2_115709/