Stefan Tretter
发表
Sarah Diefenbach,
Nina Gerber,
Daniel Ullrich,
2019,
Usability Professionals.
Sarah Diefenbach,
Nina Gerber,
Daniel Ullrich,
2013,
Usability Professionals.
Dirk Trossen,
Tobias Helbig,
Stefan Tretter,
1997,
IDMS.
Sarah Diefenbach,
Daniel Ullrich,
Stefan Tretter,
2016,
Usability Professionals.
Sarah Diefenbach,
Stefan Tretter,
2016,
Usability Professionals.
Nina Valkanova,
Sarah Diefenbach,
Kirstin Kohler,
2019,
i-com.
Sarah Diefenbach,
Hartmut Schmitt,
Benjamin Franz,
2017,
Usability Professionals.
Sarah Diefenbach,
Nina Gerber,
Daniel Ullrich,
2013,
Usability Professionals.
Lorenz Prasch,
Stefan Tretter,
2016,
Mensch & Computer.
Sarah Diefenbach,
Daniel Ullrich,
Stefan Tretter,
2020,
Usability Professionals.
Sarah Diefenbach,
Daniel Ullrich,
Stefan Tretter,
2015,
Mensch & Computer.
Sarah Diefenbach,
Kirstin Kohler,
Stefan Tretter,
2018,
Usability Professionals.