Petersen, Suzanne. Pan-Hispanic Ballad Project. Web.
This site brings online several interrelated databases that will provide students in this field with essential tools for their researches: a) an exhaustive, critical bibliography of Pan-Hispanic Balladry, b) a large corpus of texts representative of all ballads documented worldwide since the 15th century, c) cartographic display of the primary and seconday data, and d) digitized reproductions of original oral performances and their musical notation.