Hogg, M. A., Abrams, D., Otten, S., & Hinkle, S. (2004). The social identity perspective intergroup relations, self-conception, and small groups. Small group research, 35(3), 246-276.
https://www.researchgate.net/publication/44279493
Stets, J. E., & Burke, P. J. (2000). Identity theory and social identity theory. Social psychology quarterly, 224-237.
This is the abstract on ResearchGate: https://www.researchgate.net/publication/272581791
This paper was written by a ResearchGate member, although this is not on her list of publications:
Lapinski, M. K., & Mastro, D. E. (2001). A Social Identity Approach to Understanding the Jury Decision-Making Process: Race as a Social Indicator. JOURNAL OF INTERGROUP RELATIONS, 28(2), 48-62.