@article{FORUM_1992__4_6_141661,
     author = {Gabriella D'Este},
     title = {Simple submodules and multiplicities.},
     journal = {Forum mathematicum},
     pages = {1--12},
     year = {1992},
     volume = {4},
     number = {6},
     zbl = {0747.16005},
     url = {http://geodesic.mathdoc.fr/item/FORUM_1992__4_6_141661/}
}