proceedings of a workshop held in Garching, Germany, June 18-19 1984 Workshop on Cometary Astrometry Germany 1984 June 18-19 creator Yeomans, D K., ed. text xx Paris International Halley Watch 1984 9999 monographic eng

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v, 220p. edited by D. K. Yeomans Comet Halley Cometary Astronomy Data Report Data Schedule Nature of Comets 523.64:521.9 YEO 211028