1. The bipolar spectrum: new concepts in classification and diagnosis;Akiskal,1983
2. The bipolar spectrum—the shaping of a new paradigm;Akiskal;Curr. Psychiatry Rep.,2002
3. Cyclothymic, hyperthymic and depressive temperaments as subaffective variants of mood disorders;Akiskal,1992
4. Criteria for the “soft” bipolar spectrum: treatment implications;Akiskal;Psychopharmacol. Bull.,1987
5. The evolving bipolar spectrum: prototypes I, II, III, IV;Akiskal;Psychiatr. Clin. North Am.,1999