TY - JOUR AU - Soare, Robert I. TI - The Friedberg-Muchnik Theorem Re-Examined JO - Canadian journal of mathematics PY - 1972 SP - 1070 EP - 1078 VL - 24 IS - 6 UR - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1972-110-4/ DO - 10.4153/CJM-1972-110-4 ID - 10_4153_CJM_1972_110_4 ER -