TY - JOUR AU - J. Wójcik TI - A refinement of a theorem of Schur on primes in arithmetic progressions III JO - Acta Arithmetica PY - 1968 SP - 193 EP - 197 VL - 15 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/aa-15-2-193-197/ DO - 10.4064/aa-15-2-193-197 LA - en ID - 10_4064_aa_15_2_193_197 ER -