1. Bugental J (1981) The search for authenticity: An existential-analytic approach to therapy. Irvington, New York
2. Cooper M (2003) Between freedom and despair: existential challenges and contributions to person-centered and experiential psychotherapy. Person-Centered and Experiential Psychotherapies 2(1):43–56
3. Cooper M (2004) Existential approaches to therapy. In: Sanders P (ed) The tribes of the person-centred nation. An introduction to the schools of therapy related to the Person-Centred Approach. PCCS Books, Ross-on-Wye, pp 95–124
4. Cooper M (2012) The existential counseling primer. PCCS Books, Ross-on-Wye
5. Cooper M (2003/2016) Existential therapies, 2nd ed. Sage, London (Orig.: 2003)