@article{FORUM_1992__4_6_141687,
     author = {Joachim Gr\"ater},
     title = {Prime {PI-rights} in which finitely generated right ideals are principal.},
     journal = {Forum mathematicum},
     pages = {447--464},
     publisher = {mathdoc},
     volume = {4},
     number = {6},
     year = {1992},
     zbl = {0771.16010},
     url = {http://geodesic.mathdoc.fr/item/FORUM_1992__4_6_141687/}
}