Energy Relaxation of Helium Atoms in Astrophysical GasesDOI: info:10.1088/0004-637X/756/1/57v. 75657
Lewkow, N. R., Kharchenko, V., and Zhang, P. 2012. "Energy Relaxation of Helium Atoms in Astrophysical Gases." The Astrophysical Journal, 756 57. https://doi.org/10.1088/0004-637X/756/1/57.