4U1722 + 11: the discovery of an X-ray selected BL Lac object
Griffiths, R. E., Wilson, A. S., Ward, M. J., Tapia, S., Ulvestad, J. S.Volume:
240
Language:
english
Journal:
Monthly Notices of the Royal Astronomical Society
DOI:
10.1093/mnras/240.1.33
Date:
September, 1989
File:
PDF, 627 KB
english, 1989