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\bibitem{CriadodeVal1977} Criado de Val, M. (1977). Evoluci{\'o}n, contradicci{\'o}n y perspectiva de la primera Celestina: introducci{\'o}n a la versi{\'o}n celestinesca : {\textquotedblleft}{\textquestiondown}Os acord{\'a}is de Celestina: la vieja alcahueta?{\textquotedblright}. En \textit{{\textquotedblleft}La Celestina{\textquotedblright} y su contorno social. Actas del I Congreso Internacional sobre la {\textquotedblleft}Celestina{\textquotedblright}}. Barcelona: Hispam.

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