1. ^Biography (English) "composed boleros, waltzes, tangos, marches, danzas, and his favorite, classical. In his youth he dedicated his time to popular music and art songs, as composer, guitar player and singer. Piano professor Margarita Van Rhyn, when he was barely 22 years old, said his art songs were at the level of Schumann and Schubert. In the later years of life the music of Guillermo was in general (with some exceptions) classical in nature. Highlights of his later years were the recordings that were made and two full house concerts of his music at Puerto Rico's major concert theaters, the Centro De Bellas Artes and the theater of the University of Puerto Rico and a two hour television special of his music produced by renowned opera tenor Ricardo Ledesma."
2. ^IPL Newsletter: A Publication of the American Bar 2004 "In 1993 Ralph Vargas composed a rhythm track called "Bust Dat Groove. ... 2005). Guillermo Venegas-Lloveras, who died in 1993, was a Puerto Rican composer who obtained numerous copyrights and licensed them to the music publishing ..."
3. ^The United States Patents Quarterly 2005- Page 1323 "The musical compositions are those of Guillermo Venegas-Lloveras ("GVL"), a well-known Puerto Rican composer who died in 1993. Because multiple issues are presented, we begin with an overview of background events and pertinent ... rights in GVL's works belonged to his children, ostensibly under his will and a later understanding reached between Chavez and the siblings in settling the estate; however, just what rights were so adjudicated is a matter of dispute on this"
4. ^Encyclopedia of Contemporary Latin American and Caribbean Cultures ed. Daniel Balderston, Mike Gonzalez, Ana M. López - 2000 - "In 1969, Benítez's spectacular success at the First World Festival of Canción Latina, held in Mexico, with her song 'Génesis' (written by Guillermo Venegas Lloveras) placed her unequivocally on an international stage"