1. Caldeira, C., Chen, Y., Chan, L., Pham, V., Chen, Y., Zheng, K.: Mobile apps for mood tracking: an analysis of features and user reviews. In: AMIA Annual Symposium Proceedings, April 2018
2. Bush, N.E., Gary Ouellette, B.A., Kinn, J.: Utility of the T2 mood tracker mobile application among army warrior transition Unit Service Members. Military Med. 179(12), 1453–1457 (2014)
3. Kumiyo, S., Toshihiro, K.: Effect of ‘Reflecting Diary’ on Mental Health” Psychologist: bulletin of the Graduate School of Professional Clinical Psychology, Kansai University (2018)
4. Katsura, R., Sakamoto, A.: The effect of the amount of web diary writing on psychological health: a panel study examining the mediating effects Jpn. J. Appl. Psychol., 177–185 (2015)
5. Hayashi, K.: The Japanese Journal of home care nursing. Houmonkango to kaigo, vol. 20(7) (2015)