@article{MAN_1986__276_164182,
     author = {Niels Juul Munch},
     title = {On the {Type} of a {Discrete} {Crossed} {Product.}},
     journal = {Mathematische Annalen},
     pages = {53--60},
     publisher = {mathdoc},
     volume = {276},
     year = {1986},
     zbl = {0589.22005},
     url = {http://geodesic.mathdoc.fr/item/MAN_1986__276_164182/}
}