@incollection{2930663, title = "Directionality of changes in the system of Voice and the role of Tense-Aspect in (Proto-)Indo-European: Evidence from Greek and Vedic", author = "Lavidas, Nikolaos and Kulikov, Leonid", booktitle = "In Eugenio R. Lujan, Jóhanna Bardal and Spike Gildea (eds.), Reconstructing Syntax. [Brill’s Studies in Historical Linguistics].", publisher = "Brill" }