Ph.D., UCLA, 1990. Professor of Slavic Languages & Literatures, University of Kansas, 1990-. I am interested in synthesizing techniques and learning from multiple disciplines to find novel ways of understanding and reconstructing language history. In particular, I use the comparative method, supplemented by sociolinguistics, geolinguistics, cognitive linguistics, and I also consider external historical and prehistorical (archæological) data. Most of my work applies to Slavic languages and languages in contact with them (Romance, Germanic, Finno-Ugric).