TY  - JOUR
A1  - Rothe, Heinz-Jürgen
A1  - Metz, Anna-Marie
A1  - Degener, Mirko
T1  - Mental load of call center agents
Y1  - 1999
ER  - 
TY  - JOUR
A1  - Ribback, Sven
A1  - Kalytta, T.
A1  - Metz, Anna-Marie
T1  - Heart frequency changes of professors and students in oral examinations
Y1  - 1999
ER  -