1. Adler, A. (1931). The meaning of life. The Lancet, 65(5), 226–228.
2. Baldwin, S. A., & Imel, Z. E. (2013). Therapist effects. Findings and methods. In M. J. Lambert (Ed.), Bergin & Garfield’s handbook of psychotherapy and behavior change (Vol. 6, pp. 169–218). Hoboken, NJ: Wiley.
3. Bordin, E. S. (1979). The generalizability of the psychoanalytic concept of the working alliance. Psychotherapy: Theory, Research and Practice, 16(3), 253–260.
4. Chomsky, N. (2006). Language and mind. Cambridge: Cambridge University Press.
5. Clarkson, P. (2003). The therapeutic relationship (2nd ed.). Philadelphia, PA: Whurr.