P. Salvatore, R.J. Baldessarini, F. Centorrino, S. Egli i inni. Weygandt′s On the Mixed States of Manic-Depressive Insanity: a translation and commentary on its significance in the evolution of the concept of bipolar disorder. „Harvard Review of Psychiatry”. 10 (5), s. 255-275, 2002. DOI: 10.1080/10673220216283. PMID: 12202452.
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P. Salvatore, R.J. Baldessarini, F. Centorrino, S. Egli i inni. Weygandt′s On the Mixed States of Manic-Depressive Insanity: a translation and commentary on its significance in the evolution of the concept of bipolar disorder. „Harvard Review of Psychiatry”. 10 (5), s. 255-275, 2002. DOI: 10.1080/10673220216283. PMID: 12202452.