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Title: SEST observations of southern flat-spectrum radio sources Authors: Beasley, A. J.; Conway, J. E.; Booth, R. S.; Nyman, L.-A.; Holdaway, M. Affiliation: AA(National Radio Astronomy Observatory, P.O. Box 0, Socorro NM 87801, U.S.A.), AB(Onsala Space Observatory, S-439 92 Onsala, Sweden), AC(Onsala Space Observatory, S-439 92 Onsala, Sweden), AD(Swedish--ESO Submillimetre Telescope, European Southern Observatory, Casilla 16001, Santiago 19, Chile), AE(National Radio Astronomy Observatory, 949 North Cherry Ave., Campus Building 65, Tucson AZ 85721, U.S.A.) Journal: A & A Supplement series, Vol. 124, September 1997, 469-474. Publication Date: 09/1997 Origin: A&AS Keywords: GALAXIES: ACTIVE, BL LACERTAE OBJECTS: GENERAL, QUASARS: GENERAL, Bibliographic Code: 1997A&AS..124..469B Abstract We present the results of a 2 & 3 mm Swedish--ESO Submillimetre Telescope continuum survey of bright southern flat--spectrum radio sources. Our sample consists of all sources in the PKSCAT90 catalog south of declination -40 deg with accurate positions (<2 arcsec), and predicted 3 mm flux (based on published low--frequency spectral indices) greater than 300 mJy (47 sources). In addition, 32 bright radio sources from the USNO Radio-Optical Reference Frame catalog have been observed. Our overall detection rate for the combined sample is 66% above typical 5 sigma limits of 300-500 mJy. This survey has identified many new sources suitable for use as phase and pointing calibrators for southern millimeter interferometers. A number of individual sources are discussed.