Peter Schrijver (Dutch: [ˈsxrɛivər]; born 1963) is a Dutch linguist. He is a professor of Celtic languages at Utrecht University and a researcher of ancient Indo-European linguistics. He worked previously at Leiden University and the Ludwig Maximilian University of Munich. He has published four books and a large number of articles on the history and the linguistics of Indo-European languages, particularly the description, reconstruction and syntax of the Celtic languages, and has lately been researching language change and language contact in ancient Europe. Source: Wikipedia (en)