01015nam a2200229Ia 4500 IN-BaIIA 211028s9999 xx 000 0 eng d 0-521-41351-6 IIA Library 524.6-77(082.2) VAR Conference in Honour of the 100th Anniversary of the Birth of Academician Yrjo Vaisala Finland 1991 Jan. 6-10 18170 Variability of blazars proceedings of a conference in honour of the 100th anniversary of the birth of academician Yrjo Vaisala held in Tuorla Observatory,University of Turku, Finland, 6-10 Jan1991 edited by Esko Valtaoja and Valtonen, Mauri. ed Cambridge Cambridge University Press 1992 465p. Active galactic nuclei 6209 Astronomy and astrophysics thesaurus Blazars 18171 Quasars 1096 Valtaoja, Esko, ed. 18172 Valtonen, Mauri, Ed. 18173 BK 10652 10652 0 0 0 0 BAN BAN GEN 1993-05-05 2000.00 0 524.6-77(082.2)/ VAR 11563 2021-11-05 2000.00 1993-05-05 BK Rs. 2000.00