The 26 year-long X-ray light curve and the X-ray spectrum of the BL Lacertae object 1E 1207.9+3945 in its brightest stateA. Maselli, P. Giommi, M. Perri, R. Nesci, A. Tramacere, F. Massaro and M. CapalbiA&A, 479 1 (2008) 35-40DOI: https://doi.org/10.1051/0004-6361:20078401
