1. Barrett, J., & Hinde, R. A. (1988). Triadic interactions: Mother–first-born–second-born. In R. A. Hinde & J. Stevenson-Hinde (Eds.), Relationships within families: Mutual influences (pp. 181–190). New York: Oxford University Press.
2. Bergman, L. R., Magnusson, D., & El-Khouri, B. M. (2003). Studying individual development in an interindividual context: A person-oriented approach (Vol. 4). Mahwah, NJ: Erlbaum.
3. Bronfenbrenner, U., & Crouter, A. C. (1983). The evolution of environmental models in developmental research. In W. Kessen (Ed.), Handbook of child psychology: Vol. I. History, theory, and methods (4th ed., pp. 357–414). New York: Wiley.
4. Cox, M. J., & Paley, B. (1997). Families as systems. Annual Review of Psychology, 48, 243–267.
5. Darling, N., Hamilton, S. F., & Niego, S. (1994). Adolescents’ relations with adults outside the family. In R. Montemayor, G. R. Adams, & T. P. Gullotta (Eds.), Personal relationships during adolescence (Vol. 6, pp. 216–235). Thousand Oaks, CA: Sage.