@article{GDZPPN002199823,
title = {On the coprimality of values of Euler's function at consecutive integers.},
journal = {Journal f\"ur die reine und angewandte Mathematik},
volume = {334},
year = {1982},
pages = {91-109},
zbl = {0484.10025},
url = {http://dml.mathdoc.fr/item/GDZPPN002199823}
}
Scourfield, E.J. On the coprimality of values of Euler's function at consecutive integers.. Journal für die reine und angewandte Mathematik, Tome 334 (1982) pp. 91-109. http://gdmltest.u-ga.fr/item/GDZPPN002199823/