Authors:
Tommasi, L
Palazzi, E
Pian, E
Piirola, V
Poretti, E
Scaltriti, F
Sillanpaa, A
Takalo, L
Treves, A
Citation: L. Tommasi et al., Multiband optical polarimetry of BL Lacertae objects with the Nordic Optical Telescope, ASTRON ASTR, 376(1), 2001, pp. 51-58
Authors:
Petry, D
Bottcher, M
Connaughton, V
Lahteenmaki, A
Pursimo, T
Raiteri, CM
Schroder, F
Sillanpaa, A
Sobrito, G
Takalo, L
Terasranta, H
Tosti, G
Villata, M
Citation: D. Petry et al., Multiwavelength observations of markarian 501 during the 1997 high state, ASTROPHYS J, 536(2), 2000, pp. 742-755