The line absorption of the 294.5- and 667.8-nm lines of helium has been calculated for the Voigt profile.
© 1982 Optical Society of America
Isamu Kato and Akifumi Yonehara, "Calculations of line absorption of specific helium lines for the Voigt profile," J. Opt. Soc. Am. 72, 395-395 (1982)