 She had become a critical authority on the works of Miguel de Unamuno, Pablo Neruda, Cesar Vallejo, Rosalía de Castro, Federico García Lorca and particularly Antonio Machado, Juan Ramón Jiménez, and José Hierro.As already stated, her interest naturally extended into the work of exiled Spanish poets such as José Bergamín in Paris, Rafael Alberti in Argentina, and León Felipe and Juan Rejano in Mexico.She was a permanent member on the board of judges for the International Antonio Machado Prize awarded every year in Collioure, France.