An X-Ray Survey of the Open Cluster NGC 6475 (M7) With ROSAT

Charles F. Prosser, John R. Stauffer, J.-P. Caillault, Suchitra Balachandran, Robert A. Stern, Sofia Randich
1995 Astronomical Journal  
doi:10.1086/117599 fatcat:bgmlmsxksnc2hmuwecbffurscy