F.B.J. Kuiper ; edited by A. Lubotsky, M.S. Oort and M. Witzel

Rodopi 1997 Leiden studies in Indo-European / series edited by R.S.P. Beekes, A. Lubotsky, J.S.S. [sic] Weitenberg 8 , Kern Institute miscellanea 2

Available at 21 libraries

edited by A.W. van den Hoek, D.H.A. Kolff, M.S. Oort

E.J. Brill 1992 Memoirs of the Kern Institute no. 5

Available at 34 libraries