An average form of Artin's conjecture
Colloque de théorie des nombres (Bordeaux, 1969), Mémoires de la Société Mathématique de France no. 25  (1971), p. 169-172
@incollection{MSMF_1971__25__169_0,
     author = {Stephens, P.-J.},
     title = {An average form of Artin's conjecture},
     booktitle = {Colloque de th\'eorie des nombres (Bordeaux, 1969)},
     author = {Collectif},
     series = {M\'emoires de la Soci\'et\'e Math\'ematique de France},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {25},
     year = {1971},
     pages = {169-172},
     zbl = {0215.35602},
     mrnumber = {50 \#12978},
     language = {fr},
     url = {http://www.numdam.org/item/MSMF_1971__25__169_0}
}
Stephens, P.-J. An average form of Artin's conjecture, in Colloque de théorie des nombres (Bordeaux, 1969), Mémoires de la Société Mathématique de France, no. 25 (1971), pp. 169-172. doi : 10.24033/msmf.50. http://www.numdam.org/item/MSMF_1971__25__169_0/

[1] P.J. Stephens. - “An average result for Artin's conjecture”, Mathematika, 16 (1969), 178-188. | MR 58 #16565 | Zbl 0186.08402

[2] P.X. Gallagher. - “The large sieve”, Mathematika 14, (1967), 14-20. | MR 35 #5411 | Zbl 0163.04401

[3] C. Mardjanichvili. - Doklady Akad. Nauk SSSR, 22 (1939), n° 7.