@article{1256046711,
author = {Goldfeather, Jay E.},
title = {Certain secondary operations that detect incompressible maps},
journal = {Illinois J. Math.},
volume = {26},
number = {4},
year = {1982},
pages = { 412-418},
language = {en},
url = {http://dml.mathdoc.fr/item/1256046711}
}
Goldfeather, Jay E. Certain secondary operations that detect incompressible maps. Illinois J. Math., Tome 26 (1982) no. 4, pp. 412-418. http://gdmltest.u-ga.fr/item/1256046711/