Flare index for each day of IGY based on McMath-Hulbert Observatory working list of IGY flares
By: by Helen W. Dodson and E. Ruth Hedeman
Series: IGY World Data Center A: Solar Activity. IGY solar activity report series -- no. 14; IGY solar activity report series -- no. 14
Publisher: High Altitude Observatory [University of Colorado
Published: 1961
Place of publication: Boulder
Language: eng
Number of pages: 18
Subjects: Prominences