1. Case studies;Ascentia;International Journal of Evidence Based Coaching and Mentoring,2005
2. Stress management and management;Busch;Gruppdynamic und Organizationsberatung,2002
3. Chartered Institute of Personnel and Development (CIPD) 2004 Training and development 2004 http://www.cipd.co.uk
4. Compass Point Nonprofit Services 2003 Executive coaching project: Evaluation of findings www.compasspoint.org