@article{1206134893, author = {Uda, Hirohumi}, title = {Incomparability in ring extensions}, journal = {Hiroshima Math. J.}, volume = {9}, number = {3}, year = {1979}, pages = { 451-463}, language = {en}, url = {http://dml.mathdoc.fr/item/1206134893} }
Uda, Hirohumi. Incomparability in ring extensions. Hiroshima Math. J., Tome 9 (1979) no. 3, pp. 451-463. http://gdmltest.u-ga.fr/item/1206134893/