Ivanov, V. V. Transfer of radiation in spectral lines / V. V. Ivanov - Washington, D.C : United States National Bureau of Standards, 1973 - xvi, 461 p. ; 27 cm. - National Bureau of Standards Special publication ; 385 . Subjects--Topical Terms: AstrophysicsSpectrum analysisRadiative transfer Dewey Class. No.: 541.3722