@article{MAN_1964__154_161170,
     author = {E.C. DADE},
     title = {Integral {Systems} of {Imprimitivity.}},
     journal = {Mathematische Annalen},
     pages = {383--386},
     publisher = {mathdoc},
     volume = {154},
     year = {1964},
     zbl = {0124.26801},
     url = {http://geodesic.mathdoc.fr/item/MAN_1964__154_161170/}
}