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Date: 2007-11-21 10:38:03Technology Vaisala Main Belt asteroids Vilho Radiosonde Brunt–Väisälä frequency Utra Yrjö Väisälä Vilho Väisälä Finland Planetary science | Add to Reading ListSource URL: www.ths.fiDownload Document from Source WebsiteFile Size: 586,46 KBShare Document on Facebook |