@article{GDZPPN002062593,
title = {Flat manifolds with non-zero Euler characteristics.},
journal = {Commentarii mathematici Helvetici},
volume = {52},
year = {1977},
pages = {453-456},
zbl = {0357.53021},
url = {http://dml.mathdoc.fr/item/GDZPPN002062593}
}
Smillie, John. Flat manifolds with non-zero Euler characteristics.. Commentarii mathematici Helvetici, Tome 52 (1977) pp. 453-456. http://gdmltest.u-ga.fr/item/GDZPPN002062593/