 His main research interest is contact linguistics and Russian linguistics, in particular, study of Russianisms in Slavic languages, which was the topic of his Master and Ph.D. theses.From 2003 to 2012 he was an editor of the international online journal "Balkan Rusistics" (University of Sofia).Currently he is a member of the Advisory Board of "The International Journal of Russian Studies"  (Ankara University, Turkey).