@article{GDZPPN002067110,
title = {A generalized Hopf formula for higher homology groups.},
journal = {Commentarii mathematici Helvetici},
volume = {64},
year = {1989},
pages = {187-199},
zbl = {0685.20038},
url = {http://dml.mathdoc.fr/item/GDZPPN002067110}
}
Stöhr, Ralph. A generalized Hopf formula for higher homology groups.. Commentarii mathematici Helvetici, Tome 64 (1989) pp. 187-199. http://gdmltest.u-ga.fr/item/GDZPPN002067110/