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RAPID VARIATIONS IN THE POLARIZATION OF THE BE STAR GAMMA CASPIIROLA V.1979; ASTR. AND ASTROPHYS., SUPPL. SER.; DEU; DA. 1979; VOL. 38; NO 2; PP. 193-196; BIBL. 8 REF.Article

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POLARIZATION OBSERVATIONS OF FOUR V UMA-TYPE ECLIPSING BINARIES.PIIROLA V.1977; ASTR. AND ASTROPHYS.; GERM.; DA. 1977; VOL. 56; NO 1-2; PP. 105-109; BIBL. 13 REF.Article

THE DOUBLE BEAM CHOPPING PHOTOMETER-POLARIMETER.PIIROLA V.1975; ANN. ACAD. SCI. FENN., A 6; FINL.; DA. 1975; NO 418; PP. 1-58; BIBL. 2 P.; ISBN 9514102401Article

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INTRINSIC POLARIZATION OF THE MAGNETIC VARIABLE HD 71866TUOMINEN I; PIIROLA V.1978; ASTR. SOVET AKAD. NAUK S.S.S.R., NAUCH. INFORM.; SUN; DA. 1978; NO 45; PP. 76-83; BIBL. 19 REF.Article

VARIABLE LINEAR POLARIZATION IN THE X-RAY BINARY HD 77581KORHONEN T; PIIROLA V.1980; ASTRON. ASTROPHYS. (BERL.); DEU; DA. 1980; VOL. 91; NO 3; PP. 372-373; BIBL. 13 REF.Article

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A note on stellar ultraviolet linear polarization observationsHUOVELIN, J; PIIROLA, V.Astronomy and astrophysics (Berlin. Print). 1990, Vol 231, Num 2, pp 588-590, issn 0004-6361Article

The highly magnetic (B∼500 MG) white dwarf PG 1031-234 : discovery of wavelength dependent polarization and intensity variationsPIIROLA, V; REIZ, A.Astronomy and astrophysics (Berlin. Print). 1992, Vol 259, Num 1, pp 143-148, issn 0004-6361Article

Interstellar polarization at high galactic latitudes from distant stars: VII. A complete map for southern latitudes b < -70°BERDYUGIN, A; PIIROLA, V; TEERIKORPI, P et al.Astronomy and astrophysics (Berlin. Print). 2004, Vol 424, Num 3, pp 873-876, issn 0004-6361, 4 p.Article

Photoelectric observations of EV Lac in 1984PANOV, K. P; PIIROLA, V; KORHONEN, T et al.Information bulletin on variable stars. 1985, Num 2826, issn 0374-0676, 4 p.Serial Issue

Polarization variability among Wolf-Rayet stars. VIII: Emission lines versus continuum in WR+O binariesMOFFAT, A. F. J; PIIROLA, V.The Astrophysical journal. 1993, Vol 413, Num 2, pp 724-734, issn 0004-637X, 1Article

Circumstellar disks deduced from sub-arcsecond polarization observations of two young starsPIIROLA, V; SCALTRITI, F; COYNE, G. V et al.Nature (London). 1992, Vol 359, Num 6394, pp 399-401, issn 0028-0836Article

Five-colour (UBVRI) polarimetry of H0139-68=BL HydriPIIROLA, V; REIZ, A; COYNE, G. V et al.Astronomy and astrophysics (Berlin. Print). 1987, Vol 185, Num 1-2, pp 189-195, issn 0004-6361Article

Interstellar extinction and polarimetric properties of the star HD 200775PFAU, W; PIIROLA, V; REIMANN, H.-G et al.Astronomy and astrophysics (Berlin. Print). 1987, Vol 179, Num 1-2, pp 134-140, issn 0004-6361Article