Post-Doctoral Qualification in General Linguistics and Typology, University of Bielefeld, 1999-2000
Habilitation und Erteilung der venia legendi fur das Gebiet Linguistik (Schwerpunkt Allgemeine Sprachwissenschaft und Sprachtypologie) an der Fakultat fur Linguistik und Literaturwissenschaft der Universitat Bielefeld (Referenten: Prof.Dr.Bernard Comrie, Prof.Dr.Dafydd Gibbon, Prof.Dr.Werner Kummer, Prof.Dr.Christian Lehmann)
Ph.D. in Linguistics, Institute of Linguistic Studies in St.Petersburg,
Russian Academy of Sciences, 1990
M.A. in Computational and Structural Linguistics, St.Petersburg State University,
1985
Stanford University, Department of Linguistics, visiting scholar (since 2001)
Leiden University, Department of Comparative Linguistics, visiting scholar (1999, 2000)
St.Petersburg Institute
of Linguistic Studies, Russian Academy of Sciences, Department of Paleo-Siberian and Samoedic
Languages, research fellow (1989-1996), research assistant (1985-1989)