Extreme Ultraviolet Observations of Active Regions in the Chromosphere and the CoronaDOI: info:10.1007/BF00153074v. 11388–398
Noyes, Robert W., Withbroe, George L., and Kirshner, Robert P. 1970. "Extreme Ultraviolet Observations of Active Regions in the Chromosphere and the Corona." Solar Physics, 11 388–398. https://doi.org/10.1007/BF00153074.