@article{10_4064_aa_6_4_415_434,
     author = {Stanis{\l}aw Knapowski},
     title = {Contributions to the theory of the distribution of prime numbers in arithmetical progressions {I}},
     journal = {Acta Arithmetica},
     pages = {415--434},
     publisher = {mathdoc},
     volume = {6},
     number = {4},
     year = {1960},
     doi = {10.4064/aa-6-4-415-434},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa-6-4-415-434/}
}