TY - JOUR AU - David Hummer AU - P. Kunasz BT - Journal of Quantitative Spectroscopy and Radiative Transfer DA - Jan-01-1976 DO - 10.1016/0022-4073(76)90125-4 PY - 1976 SP - 77 EP - 96 T2 - Journal of Quantitative Spectroscopy and Radiative Transfer TI - Migration of excitation in transfer of spectral-line radiation VL - 16 SN - 00224073 ER -