@article{HHA_2008_10_2_a8,
     author = {Julia E. Bergner},
     title = {Adding inverses to diagrams encoding algebraic structures},
     journal = {Homology, homotopy, and applications},
     pages = {149--174},
     publisher = {mathdoc},
     volume = {10},
     number = {2},
     year = {2008},
     doi = {10.4310/HHA.2008.v10.n2.a8},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4310/HHA.2008.v10.n2.a8/}
}