@article{10314, author = {David Hummer and P. Kunasz}, title = {Migration of excitation in transfer of spectral-line radiation}, year = {1976}, journal = {Journal of Quantitative Spectroscopy and Radiative Transfer}, volume = {16}, pages = {77-96}, month = {Jan-01-1976}, issn = {00224073}, doi = {10.1016/0022-4073(76)90125-4}, }