proceedings of an international conference held to celebrate the 50th anniversary of Tuorla Observatory, Tuorla Observatory, Piikkiö, Finland, 17-21 June 2002 50th anniversary Conference of Tuorla Observatory Finland 2002 June 17-21 creator Takalo, L. O., ed. Valtaoja, Esko, ed. Astronomical Society of the Pacific text xx San Francisco Astronomical Society of the Pacific 2003 9999 monographic eng

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xiii, 323p. edited by L. O. Takalo and Esko Valtaoja BL Lacertae Objects High energy astronomy 082.2:52 ASP-299 1-58381-146-X 211028