@article{1102867394,
author = {Fadell, Edward},
title = {Nielsen numbers as a homotopy type invariant.},
journal = {Pacific J. Math.},
volume = {67},
number = {2},
year = {1976},
pages = { 381-388},
language = {en},
url = {http://dml.mathdoc.fr/item/1102867394}
}
Fadell, Edward. Nielsen numbers as a homotopy type invariant.. Pacific J. Math., Tome 67 (1976) no. 2, pp. 381-388. http://gdmltest.u-ga.fr/item/1102867394/