TY - JOUR AU - J. Huennekens AU - Alan Gallagher BT - Physical Review A DA - Jan-07-1983 DO - 10.1103/PhysRevA.28.238 PY - 1983 SP - 238 EP - 247 T2 - Physical Review A TI - Radiation diffusion and saturation in optically thick Na vapor VL - 28 SN - 0556-2791 ER -