References

I have ‘lent my voice’ to the following persons, organizations and companies:

to our customer comments

Adidas
Angela Merkel FEDERAL CHANCELLOR
APCO Worldwide
Apple
Aschraf Ghani President of Afghanistan
Bauhaus Museum Berlin
Bill Gates CEO MICROSOFT
Bread for the World
Cem Özdemir CHAIRMAN OF THE GREEN PARTY
Chamber of Industry and Commerce Potsdam
Christian Wulff FEDERAL PRESIDENT
Daniel Barenboim CONDUCTOR
Deutschlandradio Kultur
dicomm International
Edward Snowden US WHISTLEBLOWER
Europäischer Austausch e.V.
European Parliament – The Greens
European Trade Union Confederations ETF, UNI Europa, EPSU
Frank-Walter Steinmeier German foreign minister
Friedrich Ebert Foundation
Gerard Butler US actor
Gerhard Schröder Federal chancellor
German Council for Sustainable Development
German National Tourist Board
German Research Center for Geosciences
German Sports Betting Association
Germanwatch
Giorgi Margwelaschwili president of georgia
Guggenheim New York Museum
Hans-Böckler-Foundation
Hasso Plattner CEO SAP
Heinrich-Böll-Foundation
Helmut Kohl Federal chancellor
Helmut Schmidt Federal chancellor
Henry Kissinger Former us secretary of state
Hussein bin Abdullah crown prince of jordan
Jens Weidmann President of the german central bank
Jewish Museum Berlin
Joachim Gauck federal president
Joe Kaeser CEO SIEMENS
Joschka Fischer german foreign minister
Klaus Wowereit Mayor of berlin
Martin Schulz president of the EP aND chairman of the SPD
Matteo Renzi prime minister of italy
Matthias Platzeck prime minister of the state of brandenburg
Michael Müller mayor of berlin
Michail Chodorkowski CEO YUKOS
Multiple ambassadors, ministers and senators
Norodom Sirivudh crowne prince of cambodia
Oxfam Germany
Protestant Academy Berlin
Reinhard Bütikofer Member of the EP
Reinhold Messner extreme mountaineer
Renate Künast Member of the Bundestag
Rita Süssmuth president of the bundestag
Service Employees International Union
Sigmar Gabriel German foreign minister
The Greens
Tony Blair BRITISh PRime minister
Tourism Watch
Ursula von der Leyen German defense minister
ver.di United Services Union
Wangari Maathai Winner of the peace nobelprize
Weberbank
Wolfgang Schäuble German finance minister
Wolodymyr Groisman Prime Minister of Ukraine