TY - JOUR AU - Cohen, T AU - Dakin, D AU - Lebed, R AU - Martin, D C2 - Physical Review D (Particles, Fields, Gravitation and Cosmology) DA - 2005-01-01 00:01:00 LA - en M1 - 71 PB - Physical Review D (Particles, Fields, Gravitation and Cosmology) PY - 2005 TI - Pion Photoproduction Amplitude Relations in the 1/Nc Expansion ER -