He has also been appointed at Michigan State University, CERGE-EI (Prague, Czech Republic), the University of Warsaw, Central University of Venezuela and Mohila Academy University of Kiev.

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On 17 March 2005, Andrzej Udalski, professor of astronomy at Warsaw University, Poland, and leader of the Optical Gravitational Lensing Experiment (Ogle), noticed that just such an event was about to occur near the centre of our galaxy.

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Furthermore, a follow-up paper by Mikolaj Korzynski of Warsaw University in Poland has claimed that there is a fatal flaw that may make Dr Cooperstock's model a mathematical but not a physical possibility.

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"It's the heritage to their entire marketing strategy over three decades, " said Paul Swangard, the director of the Warsaw Sports Marketing Center at the University of Oregon.

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