@article{JTNB_2011__23_3_697_0,
     author = {Luca, Florian and Pollack, Paul},
     title = {An arithmetic function arising from {Carmichael{\textquoteright}s} conjecture},
     journal = {Journal de th\'eorie des nombres de Bordeaux},
     pages = {697--714},
     publisher = {Soci\'et\'e Arithm\'etique de Bordeaux},
     volume = {23},
     number = {3},
     year = {2011},
     doi = {10.5802/jtnb.783},
     zbl = {1271.11092},
     mrnumber = {2861081},
     language = {en},
     url = {http://www.numdam.org/articles/10.5802/jtnb.783/}
}