@Article{zbMATH03055539,
Author = {Atle {Selberg}},
Title = {{An elementary proof of Dirichlet's theorem about primes in an arithmetic progression}},
FJournal = {{Annals of Mathematics. Second Series}},
Journal = {{Ann. Math. (2)}},
ISSN = {0003-486X; 1939-8980/e},
Volume = {50},
Pages = {297--304},
Year = {1949},
Publisher = {Princeton University, Mathematics Department, Princeton, NJ},
Language = {English},
MSC2010 = {11N13},
Zbl = {0036.30603}
}