Sille, R (2021) Professional Doctorate Portfolio. Doctoral thesis, Liverpool John Moores University.

Porter, S, Ronkainen, N, Sille, R and Eubank, M (2021) An Existential Counseling Case Study: Navigating Several Critical Moments With a Professional Football Player. Case Studies in Sport and Exercise Psychology, 5 (1). pp. 106-113. ISSN 2470-4849

Sille, R, Ronkainen, NJ and Tod, D (2019) Experiences leading elite motorcycle road racers to participate at the Isle of Man Tourist Trophy (TT): An existential perspective. Qualitative Research in Sport, Exercise and Health. ISSN 2159-676X