Context

Context of New technologies for astronomy : ECO2 : proceedings, 25-26 April 1989, Paris, France, Jean-Pierre Swings, chair/editor ; the Congress of EPS--European Physical Society, Europtica--the European Federation for Applied Optics, SPIE--the International Society for Optical Engineering ; cooperating organizations, ANRT--Association Nationale de la Recherche Technique ... (et al.)
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