@article{GDZPPN002181738,
title = {Neighborhood extensions of continuous maps.},
journal = {Journal f\"ur die reine und angewandte Mathematik},
volume = {222},
year = {1966},
pages = {58-68},
zbl = {0138.17603},
url = {http://dml.mathdoc.fr/item/GDZPPN002181738}
}
Liebnitz, Paul W. jr. Neighborhood extensions of continuous maps.. Journal für die reine und angewandte Mathematik, Tome 222 (1966) pp. 58-68. http://gdmltest.u-ga.fr/item/GDZPPN002181738/