@article{PORMA_1995__52_3_47505,
     author = {El From, Youssef},
     title = {A primitive ideal of  contracting to a primitive ideal of . {(Un} id\'eal primitif de  se contracte en un id\'eal primitif de .)},
     journal = {Portugaliae mathematica},
     pages = {357--361},
     publisher = {mathdoc},
     volume = {52},
     number = {3},
     year = {1995},
     zbl = {0847.17008},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PORMA_1995__52_3_47505/}
}