@article{CLTM_2008_2008_1_a11,
     author = {Danchev, Peter  },
     title = {Warfield {Invariants} in {Abelian} {Group} {Algebras}},
     journal = {Collectanea mathematica},
     year = {2008},
     volume = {59},
     number = {3},
     zbl = {1195.16034},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CLTM_2008_2008_1_a11/}
}