@article{10_21136_CMJ_1983_101884,
     author = {Miller, Ann and Pedersen, F. D. and Sizer, Walter S.},
     title = {The semigroup of finite complexes of a group},
     journal = {Czechoslovak Mathematical Journal},
     pages = {337--343},
     publisher = {mathdoc},
     volume = {33},
     number = {3},
     year = {1983},
     doi = {10.21136/CMJ.1983.101884},
     mrnumber = {718917},
     zbl = {0551.20049},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1983.101884/}
}