@article{03941652, title = {Methods of constructing hyperfields.}, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {8}, year = {1985}, pages = {725-728}, doi = {10.1155/S0161171285000813}, zbl = {0587.12015}, language = {en}, url = {http://dml.mathdoc.fr/item/03941652} }
Massouros, Ch.G. Methods of constructing hyperfields.. International Journal of Mathematics and Mathematical Sciences, Tome 8 (1985) pp. 725-728. doi : 10.1155/S0161171285000813. http://gdmltest.u-ga.fr/item/03941652/