@article{10_4064_aa_11_4_433_436,
     author = {J. W\'ojcik},
     title = {A refinement of a theorem of {Schur} on primes in arithmetic progressions},
     journal = {Acta Arithmetica},
     pages = {433--436},
     publisher = {mathdoc},
     volume = {11},
     number = {4},
     year = {1965},
     doi = {10.4064/aa-11-4-433-436},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa-11-4-433-436/}
}