TY - JOUR AU - W. Jurkat AU - H. Richert TI - An improvement of Selberg's sieve method I JO - Acta Arithmetica PY - 1965 SP - 217 EP - 240 VL - 11 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/aa-11-2-217-240/ DO - 10.4064/aa-11-2-217-240 LA - en ID - 10_4064_aa_11_2_217_240 ER -