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Haaren-Mack, Birte von, Simone Nadine Löffler, Sascha Härtel, Panagiota Anastasopoulou, Jürgen Stumpp, Stefan Hey, and Klaus Bös. "Characteristics of the Activity-affect Association in Inactive People: An Ambulatory Assessment Study in Daily Life." Frontiers in Psychology 4 (2013): Art.-ID 163; [12 S.].

Haaren-Mack, Birte von, et al. "Characteristics of the Activity-affect Association in Inactive People: An Ambulatory Assessment Study in Daily Life." Frontiers in Psychology 4 (2013): Art.-ID 163; [12 S.].