TY - JOUR AU - Christensen, J Daniel AU - Isaksen, Daniel C TI - Duality and Pro-Spectra JO - Algebraic and Geometric Topology PY - 2004 SP - 781 EP - 812 VL - 4 IS - 2 UR - http://geodesic.mathdoc.fr/articles/10.2140/agt.2004.4.781/ DO - 10.2140/agt.2004.4.781 ID - 10_2140_agt_2004_4_781 ER -