@article{SF_1993__46_1_135243,
     author = {W. Ruitenburg},
     title = {Products of idempotent matrices over {Hermite} domains.},
     journal = {Semigroup forum},
     pages = {371--378},
     publisher = {mathdoc},
     volume = {46},
     number = {1},
     year = {1993},
     zbl = {0786.15017},
     url = {http://geodesic.mathdoc.fr/item/SF_1993__46_1_135243/}
}