TY - JOUR AU - Halbhavi, I. G. AU - Varadarajan, K. TI - Gottlieb Sets and Duality in Homotopy Theory JO - Canadian journal of mathematics PY - 1975 SP - 1042 EP - 1055 VL - 27 IS - 5 UR - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1975-110-0/ DO - 10.4153/CJM-1975-110-0 ID - 10_4153_CJM_1975_110_0 ER -