Jan Geffken

Climate-neutral and sustainable campus Leuphana University of Lueneburg

Oliver Opel, Nikolai Strodel, Karl F. Werner, 2017 .

Like! You saved #energy today. Fostering Energy Efficiency in Buildings - The implementation of social media patterns as symbols in Building Management Systems' Graphical User Interfaces using Peirce's semeiosis as a communication concep

Oliver Opel, Jan Geffken, Andreea Tribel, 2014, EnviroInfo.