First European VLBI School, Castel San Pietro Terme, Italy; September 12, 1988
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The Structure and Content of Molecular Clouds: 25 Years of Molecular Radioastronomy, Ringberg Castle, Tegernsee, Germany; April 15, 1993
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From the Center of the Milky Way to Nearby Low-Luminosity Galactic Nuclei Bad Honnef, Germany; April 18–22, 2006
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Event Horizon Telescope Workshop, Haystack Observatory; January 2010
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IAU 242, Astrophysical Masers and Their Environments, Alice Springs, Australia; March 15, 2007
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IAU 242, Astrophysical Masers and Their Environments, Alice Springs, Australia; March 15, 2007
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Millerfest; May 18–19, 2011
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The Submillimeter Array: First Decade of Discovery, Cambridge, MA; June 9–10, 2014
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Inaugural Symposium of Joint Institute for VLBI–European Research Infrastructure (Consortium Dwingeloo, The Netherlands; April 20–21, 2015
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CORF meeting, Woods Hole, MA; October 16, 2018
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