Positions of galactic X-ray sources: 20° < lII < 55°
Doxsey, R. E., Apparao, K. M. V., Bradt, H. V., Dower, R. G., Jernigan, J. G.Volume:
269
Year:
1977
Pages:
5
DOI:
10.1038/269112a0
File:
PDF, 759 KB
1977