TY - JOUR AU - John Cooper AU - R. Ballagh BT - Physical Review A DA - Jan-09-1978 DO - 10.1103/PhysRevA.18.1302 PY - 1978 SP - 1302 EP - 1306 T2 - Physical Review A TI - Role of collisional repopulation of atomic levels on coherent and redistributed components in resonant light scattering VL - 18 SN - 0556-2791 ER -