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\bibitem{Lugo1999} Lugo, M. L. (1999). \textit{Las diferentes manifestaciones de la memoria en {\textquotedblleft}C{\'a}rcel de amor{\textquotedblright} y {\textquotedblleft}La Celestina{\textquotedblright}}. Ph.D. thesis, University of Massachussetts, .

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