ie Communications The Medium is the Message
Consulting, Coaching, Training und Lecturing
https://www.instagram.com/gerhard_vilsmeier/
www.xing.com/profile/Gerhard_Vilsmeier/cv
www.linkedin.com/in/gerhard-vilsmeier-dr-872b9156/
de.wikipedia.org/wiki/Gerhard_Vilsmeier