 Complete the following phrase:  Victor Lvovich Zaslavsky ; 26 September 1937 - 26 November 2009 was a professor of political sociology who taught at institutions such as LUISS Libera Università Internazionale degli Studi Sociali Guido Carli, the Leningrad State University, Memorial University of Newfoundland in St. Johns, Canada, University of California at Berkeley, Stanford, and elsewhere during a long academic career. He developed trenchant analyses of political and social aspects of the Soviet Union, prior to and following its collapse. Born in Leningrad, Zaslavsky was a naturalized citizen of Canada. He was a member of the board of the political journal TELOS for several decades. His major work prior to his death in 2009 was Class Cleansing: 