friends:owned
Christian PIEHL
- user:function : Dipl. -Ing.
Anna BRAUNE
- user:function : Principal Consultant und Commercial Director Sustainable Building
Johannes GANTNER
- user:function : wissenschaftlicher Mitarbeiter
Sonja WEIBLE
- user:function : Consultant
Sebastian SCHWARZ
- user:function : Berater
Siegrun KITTELBERGER
- user:function : CONSTRUCTION 21, content manager
- user:organization : Sphera Solutions GmbH