Hosenfeld, B., Bos, E. H., Wardenaar, K. J., Conradi, H. J., van der Maas, H. L. J., Visser, I., & de Jonge, P. (2015). Major depressive disorder as a nonlinear dynamic system: Bimodality in the frequency distribution of depressive symptoms over time. BMC Psychiatry.

Hosenfeld, Bettina, Elisabeth H. Bos, Klaas J. Wardenaar, Henk Jan Conradi, Han L. J. van der Maas, Ingmar Visser, and Peter de Jonge. "Major Depressive Disorder As a Nonlinear Dynamic System: Bimodality in the Frequency Distribution of Depressive Symptoms Over Time." BMC Psychiatry 2015.

Hosenfeld, Bettina, et al. "Major Depressive Disorder As a Nonlinear Dynamic System: Bimodality in the Frequency Distribution of Depressive Symptoms Over Time." BMC Psychiatry 2015.