In 1971, Vargas Llosa published "García Márquez: Story of a Deicide" ("García Márquez: historia de un deicidio"), which was his doctoral thesis for the Complutense University of Madrid. Although Vargas Llosa wrote this book-length study about his then friend, the Colombian Nobel laureate writer Gabriel García Márquez, they did not speak to each other again. In 1976, Vargas Llosa punched García Márquez in the face in Mexico City at the "Palacio de Bellas Artes", ending the friendship. Neither writer had publicly stated the underlying reasons for the quarrel. A photograph of García Márquez sporting a black eye was published in 2007, reigniting public interest in the feud. Despite the decades of silence, in 2007, Vargas Llosa agreed to allow part of his book to be used as the introduction to a 40th-anniversary edition of García Márquez's "One Hundred Years of Solitude", which was re-released in Spain and throughout Latin America that year. "Historia de un Deicidio" was also reissued in that year, as part of Vargas Llosa's complete works.