Christoph Schalk
Friends.
Friends
Kerstin Hack: http://www.down-to-earth.de
Klinik-Clowns Würzburg: http://www.lachtraenen.de
Matthias Beyer: www.nachhaltiges-coaching.de
Facebook: www.facebook.de/intercoach XING: https://www.xing.com/profile/Christoph_Schalk Twitter: twitter.com/intercoach Amazon: www.amazon.de/Christoph-Schalk/e/B00458SYV0/ Wikipedia: http://de.wikipedia.org/wiki/Christoph_Schalk