Ralf Wondratschek

Doo z z z z z e

31 October 2017 Video Ralf Wondratschek
Droidcon NYC 2017

DO Z Z Z Z Z E

18 October 2017 Video Ralf Wondratschek
Droidcon Berlin 2017

Doo z z z z z e

4 September 2017 Slide Ralf Wondratschek
Droidcon NYC 2017