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Steuber 2011, p.12-13. Steuber, Lucas Carl (2011). Disordered Thought, Disordered Language: A corpus-based description of the speech of individuals undergoing treatment for schizophrenia (Thesis). doi:10.15760/etd.63. OCLC775308103. ProQuest904159072.
Sass, Louis; Pienkos, Elizabeth (September 2015). "Beyond words: linguistic experience in melancholia, mania, and schizophrenia". Phenomenology and the Cognitive Sciences. 14 (3): 475–495. doi:10.1007/s11097-013-9340-0. S2CID254947008.
Steuber 2011, p.12-13. Steuber, Lucas Carl (2011). Disordered Thought, Disordered Language: A corpus-based description of the speech of individuals undergoing treatment for schizophrenia (Thesis). doi:10.15760/etd.63. OCLC775308103. ProQuest904159072.