Authors: Costamante, L Ghisellini, G Giommi, P Tagliaferri, G Celotti, A Chiaberge, M Fossati, G Maraschi, L Tavecchio, F Treves, A Wolter, A

Citation: L. Costamante et al., Extreme synchrotron BL Lac objects - Stretching the blazar sequence, ASTRON ASTR, 371(2), 2001, pp. 512-526

Authors: Ghisellini, G Costamante, L Tagliaferri, G Maraschi, L Celotti, A Fossati, G Pian, E Comastri, A De Francesco, G Lanteri, L Raiteri, CM Sobrito, G Villata, M Glass, IS Grandi, P Perola, C Treves, A

Citation: G. Ghisellini et al., The blazar PKS 0528+134: new results from BeppoSAX observations, ASTRON ASTR, 348(1), 1999, pp. 63-70