@article{10_4153_CJM_1993_015_8,
     author = {Hoffman, Peter},
     title = {Projective and {Multigraded} {Representations} of {Monomial} and {Multisigned} {Groups} {I.} {Graded} {Representations} of a {Twisted} {Product}},
     journal = {Canadian journal of mathematics},
     pages = {295--339},
     year = {1993},
     volume = {45},
     number = {2},
     doi = {10.4153/CJM-1993-015-8},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1993-015-8/}
}