Type:		Journal, Article
Title:		The solar cycle variation of the solar wind helium abundance
Author(s):		Ogilvie, K. W.; Hirshberg, J.
Date:		1974/11/01
Journal (full):		Journal of Geophysical Research
Volume:		79
Issue:		31
Start Page:		4595
End Page:		4602
Link:		http://onlinelibrary.wiley.com/doi/10.1029/JA079i031p04595/abstract
Link (PDF):		http://onlinelibrary.wiley.com/doi/10.1029/JA079i031p04595/pdf