TY - JOUR AU - J. Wójcik TI - A refinement of a theorem of Schur on primes in arithmetic progressions JO - Acta Arithmetica PY - 1965 SP - 433 EP - 436 VL - 11 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/aa-11-4-433-436/ DO - 10.4064/aa-11-4-433-436 LA - en ID - 10_4064_aa_11_4_433_436 ER -