@article{JTNB_2003__15_1_383_0,
     author = {Stevenhagen, Peter},
     title = {The correction factor in {Artin's} primitive root conjecture},
     journal = {Journal de th\'eorie des nombres de Bordeaux},
     pages = {383--391},
     publisher = {Universit\'e Bordeaux I},
     volume = {15},
     number = {1},
     year = {2003},
     mrnumber = {2019022},
     zbl = {1043.11078},
     language = {en},
     url = {http://www.numdam.org/item/JTNB_2003__15_1_383_0/}
}