@article{ERAAMS_2006_12_a14,
     author = {Moree, Pieter},
     title = {On the distribution of the order over residue classes},
     journal = {Electronic research announcements of the American Mathematical Society},
     pages = {121--128},
     publisher = {mathdoc},
     volume = {12},
     year = {2006},
     doi = {10.1090/S1079-6762-06-00168-5},
     url = {http://geodesic.mathdoc.fr/articles/10.1090/S1079-6762-06-00168-5/}
}