1. N. Chomsky:Syntactic Structures (The Hague, 1957).
2. R. Jakobson, C. G. M. Fant andM. Halle:Preliminaries to Speech Analysis (M.I.T. Acoustics Lab. Report 13, 1952).
3. R. Jakobson andM. Halle:Fundamentals of Language (The Hague, 1956).
4. M. Halle:The Sound Pattern of Russian (The Hague, in press).