1. “The identity of properties.”;ACHINSTEIN;American philosophical quarterly,1974
2. “Are bridge laws really necessary?”;AGER;Nous,1974
3. “Idendity and sameness.”;CASTAÑEDA;Philosophia,1975
4. “Indicators and quasi-indicators.”;CASTAÑEDA;American philosophical quarterly,1967
5. “Individuation and non-identity: a new look.”;CASTAÑEDA;American philosophical quarterly,1975