00927nam a2200205Ia 4500003000900000008004100009020001800050040001600068080002500084111011600109245029700225260004800522300001000570650002700580650004100607650001200648650001200660700002400672700002500696IN-BaIIA211028s9999    xx            000 0 eng d  a0-521-41351-6  cIIA Library  a524.6-77(082.2)bVAR  aConference in Honour of the 100th Anniversary of the Birth of Academician Yrjo VaisalacFinlandd1991 Jan. 6-10 0aVariability of blazarsbproceedings 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 Jan1991cedited by Esko Valtaoja and Valtonen, Mauri. ed                                                aCambridgebCambridge University Pressc1992  a465p.  aActive galactic nuclei  aAstronomy and astrophysics thesaurus  aBlazars  aQuasars  aValtaoja, Esko, ed.  aValtonen, Mauri, Ed.