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: Katajainen, S Scaltriti, F Piirola, V Lehto, HJ Anderlucci, E

Citation: S. Katajainen et al., UBVRI-polarimetry of the AM Herculis star RX J0203.8+2959, ASTRON ASTR, 372(3), 2001, pp. 945-951

Authors: Uslenghi, M Tommasi, L Treves, A Piirola, V Reig, P

Citation: M. Uslenghi et al., Discovery of circular polarization in the Intermediate Polar 1WGA J1958.2+3232, ASTRON ASTR, 372(1), 2001, pp. L1-L4

Authors: Brandi, E Garcia, LG Piirola, V Scaltriti, F Quiroga, C

Citation: E. Brandi et al., Linear polarization of a group of symbiotic systems, ASTR AST SS, 145(2), 2000, pp. 197-214

Authors: Katajainen, S Lehto, HJ Piirola, V Karttunen, H Piironen, J

Citation: S. Katajainen et al., AM Herculis star EV UMa (RE 1307+535) in a high accretion state, ASTRON ASTR, 357(2), 2000, pp. 677-680

Authors: Berdyugin, AV Piirola, V

Citation: Av. Berdyugin et V. Piirola, Polarization variability in magnetic white dwarfs GD 229 and G 240-72, ASTRON ASTR, 352(2), 1999, pp. 619-622