Authors:
Haardt, F
Fossati, G
Grandi, P
Celotti, A
Pian, E
Ghisellini, G
Malizia, A
Maraschi, L
Paciesas, W
Raiteri, CM
Tagliaferri, G
Treves, A
Urry, CM
Villata, M
Wagner, S
Citation: F. Haardt et al., The hidden X-ray Seyfert nucleus in 3C 273: BeppoSAX results, ASTRON ASTR, 340(1), 1998, pp. 35-46