Spectral Variability of 3C 273 at soft X-rays [chapter]

R. Staubert, T. J.-L. Courvoisier, H. Fink, M.-H. Ulrich, H. Brunner, S. Friedrich, K. Otterbein
1994 Multi-Wavelength Continuum Emission of AGN  
integr. time / source cts 916 s / 7377 Turner et al. 1990, MNRAS 244, 310 Staubert et al. 1993, in preparation, to be submitted to A&A 382 T. J.-L. Courvoisier and A. Blecha: Multi-Wavelength Continuum Emission of AGN, 382.
doi:10.1007/978-94-010-9537-2_99 fatcat:emprikrbcvd7jn3v4yjgf5j5dq