@article{HHA_2014_16_1_a9,
     author = {Michael Grier and Sam Nelson},
     title = {Kei modules and unoriented link invariants},
     journal = {Homology, homotopy, and applications},
     pages = {167--177},
     publisher = {mathdoc},
     volume = {16},
     number = {1},
     year = {2014},
     doi = {10.4310/HHA.2014.v16.n1.a10},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4310/HHA.2014.v16.n1.a10/}
}