H. u. G. Walter GmbH
Work available under a Creative Commons license
Give the author credit-Non-commercial use-Share-Alike 3.0 Unported licence Czech Republic
Give the author credit-Non-commercial use-Share-Alike 3.0 Unported licence Czech Republic
The project is realized with the financial support of the City Council of Prague, the Czech Ministry of Culture, Prague 4 City District and State Fund of Culture Czech Republic.
