[Depressive equivalents]. López Ibor JJ. Actas Luso Esp Neurol Psiquiatr Cienc Afines. 1979 Jan-Feb;7(1):15-20. PMID: 433686
[Anthropological classification of depression]. Moussaoui D, Touhami M. Ann Med Psychol (Paris). 1984 Sep-Oct;142(8):1125-30. PMID: 6529067
[The difference between depression and melancholia: two distinct conditions that were combined into a single category in DSM-III]. Ohmae S. Seishin Shinkeigaku Zasshi. 2012;114(8):886-905. PMID: 23012851
The classification of depressive illness. Kendell RE. Br J Psychiatry. 1970 Sep;117(538):347-8. PMID: 5480694
The pragmatic classification of depression. Blinder MG. Am J Psychiatry. 1966 Sep;123(3):259-69. doi: 10.1176/ajp.123.3.259. PMID: 5917611
Carving depression at its joints?. Young AH, Colasanti A. World Psychiatry. 2016 Oct;15(3):239-241. doi: 10.1002/wps.20367. PMID: 27717264