København: Munksgaard, 1974. — 69 p. — (Det Kongelige Danske videnskabernes selskab historisk-filosofiske meddelelser 47/3).
Some Linguistic Universals Applied to Indo-European
Glottogonic Reflections on the Indo-European Personal Endings in the Light of some Arctic Parallels
Gothic nam : nēmum and the Indo-European Reduplication
Some Remarks on the Old Irish f-Future
The Labialized Laryngeals of Lycian