Resumen de El català i l'aragonès, llengües en contacte (Edat Mitjana i Moderna)
The paper deals first with those bibliographic sources concerning the relationship between Catalan and Aragonese lexis, analyzling the use of the two vulgar tongues in contact made by sources from the Aragonese area. Then, there is a study of a number of code-switching phenomena in various marriage documents from the 16th century found in the records of the Municipal Archives of Massalió (Terol), which show instances of such code-switching.
