Social transformations in archaeology: global and local perspectives, Kristian Kristiansen, M. J. Rowlands, Psychology Press, 1998, ISBN 978-0-415-06789-8, ... From an analysis of ten stocks of Indo-European languages, Friedrich has proposed that earlier scholars, such as Delbruck, were essentially correct in deducing that 'ProtoIndo-European kinship was patriarchal, patrilineal and patrilocal ...
