@article{HHA_2014_16_2_a16,
     author = {D. Gon\c{c}alves and A. Skopenkov},
     title = {A useful lemma on equivariant maps},
     journal = {Homology, homotopy, and applications},
     pages = {307--309},
     publisher = {mathdoc},
     volume = {16},
     number = {2},
     year = {2014},
     doi = {10.4310/HHA.2014.v16.n2.a17},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4310/HHA.2014.v16.n2.a17/}
}