Ph.D. Complutense-Madrid (1962). Centennial Professor of Spanish. Paradigmas del teatro clásico español (1997); América en el teatro clásico español (1993); El mito en el teatro clásico español (1988); Celebración y catarsis (1988); Calderón y la tragedia (1984); Teatro clásico español: Problemas de una lectura actual (ed., 1980); Estudios del teatro español clásico y contemporáneo (1978); Historia del teatro español: Siglo XX (1971); Historia del teatro español (desde sus orígenes hasta 1900). (1964); Tres personajes Galdosianos (1964).

My research includes books and essays on Spanish Theater, as well as editions of classical and modern Spanish plays. I have written also on the novels of Galdós and twentieth-century poetry. I have been a visiting professor at the Universities of Jaca, Santander, Salamanca, Valladolid, Cordoba, Murcia, Giessen, Milan, Antwerp, Bourgogne, and Montreal. I have been awarded literary prizes in Puerto Rico, Spain, and the U.S.A. and have held several international research fellowships.