Fierro, Enrique2011-08-222017-05-112011-08-222017-05-112007-05http://hdl.handle.net/2152/13268textelectronicengCopyright is held by the author. Presentation of this material on the Libraries' web site by University Libraries, The University of Texas at Austin was made possible under a limited license grant from the author who has retained all copyrights in the works.Girri, Alberto--Criticism and interpretationCadenas, Rafael--Criticism and interpretation