Observations of 4U1626-67 with the Monitor Proportional Counter on the EINSTEIN (HEAO-2) Observatory. Weisskopf, M. C. ; Darbro, W. ; Elsner, R. F. ; Ghosh, P. ; Sutherland, P. G. ; Grindlay, J. E. Abstract Publication: Bulletin of the American Astronomical Society Pub Date: September 1979 Bibcode: 1979BAAS...11..773W