 Time later, the Bogdanoff brothers preside on a chair of Cosmology at the private Megatrend University of Belgrade.The preparation of both brothers for doctorates in 1991 in Primordial Cosmology at University of Bordeaux 1 created a number of controversies for them, with the university's director of thesis receiving a number of appeals, including influential figures in the university, to disallow their continued enrollment in the university's doctoral programme.The Bogdanoff brothers decided to move to Dijon, where they continued their thesis at the University of Burgundy.