Since July 2004 I have been continuously taking classes with the ITCCA in Marburg with Dr. Reinhard Graw (in Marburg/Lahn).
Since May 2006 in Potsdam with Dr. Florian Jeltsch.
Since October 2009 I have been an assistant instructor, and since 2010 my annual teaching examinations began as a recognized instructor of the ITCCA under M. Chu.
