Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{ARM_1981__17_2_a1, author = {Duda, Jarom{\'\i}r}, title = {$\varrho$-ideals in the lattice of semi $\varrho$-ideals}, journal = {Archivum mathematicum}, pages = {73--79}, publisher = {mathdoc}, volume = {17}, number = {2}, year = {1981}, mrnumber = {673248}, zbl = {0477.08001}, language = {en}, url = {http://geodesic.mathdoc.fr/item/ARM_1981__17_2_a1/} }
Duda, Jaromír. $\varrho$-ideals in the lattice of semi $\varrho$-ideals. Archivum mathematicum, Tome 17 (1981) no. 2, pp. 73-79. http://geodesic.mathdoc.fr/item/ARM_1981__17_2_a1/