1. Voice — Beyond the passive;Barber;Berkeley Linguistic Society,1975
2. Morphology. A study of the relation between meaning and form;Bybee,1985
3. The Greek use of the term ‘Middle’ in linguistic analysis;Collinge;Word,1963
4. Voice in Austronesian languages of Philippine type: Passive, ergative or neither?;De Wolf,1988
5. Remarks on the Sanskrit passive;Gonda,1951