Franke, Helge and Fryer, Gary (2010) Research and osteopathy: An interview with Dr Gary Fryer by Helge Franke. Journal of Bodywork and Movement Therapies, 14 (3). pp. 304-308. ISSN 1360-8592

Fryer, Gary (2009) Research-informed muscle energy concepts and practice. In: Muscle Energy Technique: History - Model - Research. Franke, Helge, ed. Jolandos Publishers, Ammersestr, Germany, pp. 57-62.