Dierolf, Kirsten,Hogan, Debbie (Academy of Solution Focused Training, Singapore),Hoorn, Svea van der,Wignaraja, Sukanya
(2)
Kirsten (Solutions Academy Dierolf Germany),Cristina Muhl,Carlo Perfetto,Rafal Szaniawski
(2)
Kirsten Dierolf/ Daniel Meier/ Peter Szabo
(1)