@article{GDZPPN00223341X,
title = {Belts and k-invariants of link maps in spheres.},
journal = {Manuscripta mathematica},
volume = {76},
year = {1992},
pages = {241-250},
zbl = {0791.57016},
url = {http://dml.mathdoc.fr/item/GDZPPN00223341X}
}
Koschorke, Ulrich. Belts and k-invariants of link maps in spheres.. Manuscripta mathematica, Tome 76 (1992) pp. 241-250. http://gdmltest.u-ga.fr/item/GDZPPN00223341X/