Martin Hummel 
Polifuncionalidad, polisemia y estrategia retórica [PDF ebook] 
Los signos discursivos con base atributiva entre oralidad y escritura

Polysemy and polyfunctionality are key components in the motivational structure of discourse markers. In this study the author investigates adjectival units that contribute to discourse formation in the spoken Spanish of Chile. The author shows that polyfunctionality drives not only polysemy but also grammaticalization. This grammaticalization is examined by the author in the field of tension between oral and written traditions.

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