@article {IOPORT.05752377,
    author       = {Bj\"orklund, Andreas},
    title        = {Exact covers via determinants.},
    year         = {2009},
    journal      = {Computing Research Repository (CoRR)},
    volume       = {2009},
    pages        = {Article No. 0910.0460},
    publisher    = {Association for Computing Machinery, New York, NY; Cornell University, Ithaka, NY},
    identifier   = {05752377},
}