H/He+ intensity variations of the cool corona Noens, J. -C. ; Balestat, M. -F. ; Jimenez, R. ; Rochain, S. ; Romeuf, D. ; Auchere, F. ; Delaboudiniere, P. ; Koutchmy, S. Abstract Publication: Multi-Wavelength Investigations of Solar Activity Pub Date: 2004 DOI: 10.1017/S1743921304005988 Bibcode: 2004IAUS..223..291N