Koukopoulos, A (January 2003). "Ewald Hecker's description of cyclothymia as a cyclical mood disorder: its relevance to the modern concept of bipolar II". Journal of Affective Disorders. 73 (1–2): 199–205. doi:10.1016/S0165-0327(02)00326-9. PMID12507752.
Perugi, G; Hantouche, E; Vannucchi, G; Pinto, O (1 September 2015). "Cyclothymia reloaded: A reappraisal of the most misconceived affective disorder". Journal of Affective Disorders. 183: 119–33. doi:10.1016/j.jad.2015.05.004. PMID26005206.
Commentary on Hecker and his work: Baethge, C; Salvatore, P; Baldessarini, RJ (September 2003). "Cyclothymia, a circular mood disorder". History of Psychiatry. 14 (55 Pt 3): 377–390. doi:10.1177/0957154X030143008. PMID14621693. S2CID145076032. New translation of Hecker's 1898 paper: Hecker, Ewald; Salvatore, P; Baldessarini, R. J. (September 2003). "Classic Text No 55: Cyclothymia, a Circular Mood Disorder by Hecker, 1898". History of Psychiatry. 14 (55 Pt 3): 391–399. doi:10.1177/0957154X030143008. PMID14621693. S2CID145076032.
"Cyclothymia". nhs.uk. 2017-10-18. Retrieved 20 May 2018.
nih.gov
pubmed.ncbi.nlm.nih.gov
Koukopoulos, A (January 2003). "Ewald Hecker's description of cyclothymia as a cyclical mood disorder: its relevance to the modern concept of bipolar II". Journal of Affective Disorders. 73 (1–2): 199–205. doi:10.1016/S0165-0327(02)00326-9. PMID12507752.
Perugi, G; Hantouche, E; Vannucchi, G; Pinto, O (1 September 2015). "Cyclothymia reloaded: A reappraisal of the most misconceived affective disorder". Journal of Affective Disorders. 183: 119–33. doi:10.1016/j.jad.2015.05.004. PMID26005206.
Commentary on Hecker and his work: Baethge, C; Salvatore, P; Baldessarini, RJ (September 2003). "Cyclothymia, a circular mood disorder". History of Psychiatry. 14 (55 Pt 3): 377–390. doi:10.1177/0957154X030143008. PMID14621693. S2CID145076032. New translation of Hecker's 1898 paper: Hecker, Ewald; Salvatore, P; Baldessarini, R. J. (September 2003). "Classic Text No 55: Cyclothymia, a Circular Mood Disorder by Hecker, 1898". History of Psychiatry. 14 (55 Pt 3): 391–399. doi:10.1177/0957154X030143008. PMID14621693. S2CID145076032.
Commentary on Hecker and his work: Baethge, C; Salvatore, P; Baldessarini, RJ (September 2003). "Cyclothymia, a circular mood disorder". History of Psychiatry. 14 (55 Pt 3): 377–390. doi:10.1177/0957154X030143008. PMID14621693. S2CID145076032. New translation of Hecker's 1898 paper: Hecker, Ewald; Salvatore, P; Baldessarini, R. J. (September 2003). "Classic Text No 55: Cyclothymia, a Circular Mood Disorder by Hecker, 1898". History of Psychiatry. 14 (55 Pt 3): 391–399. doi:10.1177/0957154X030143008. PMID14621693. S2CID145076032.