@article{1102701900, author = {Schirmer, Helga}, title = {A relative Nielsen number.}, journal = {Pacific J. Math.}, volume = {125}, number = {2}, year = {1986}, pages = { 459-473}, language = {en}, url = {http://dml.mathdoc.fr/item/1102701900} }
Schirmer, Helga. A relative Nielsen number.. Pacific J. Math., Tome 125 (1986) no. 2, pp. 459-473. http://gdmltest.u-ga.fr/item/1102701900/