Líon alt a bhfuil an ghné seo luaite iontu: 1
Is iad na leabhair agus na hailt eile dá chuid a luaitear go minic: Studies in the origins of the Celts and of early Celtic civilisation (1971); Das Hethitische vom Standpunkte der typologischen Sprachgeographie (1985); ‘The typological background of the ergative construction’ (Proceedings of the Royal Irish Academy 78C, 3, 1978)