Albert Casals
- Studies of Gaudi's 'Cripta de la Colonia Güell'. Vorgetragen bei: IABSE Symposium: Structural Preservation of the Architectural Heritage, Rome, Italy, 1993. (1993):
- (2002): Restoring the Colonia Güell church. The roof. In: Informes de la Construcción, v. 54, n. 481-482 (Dezember 2002).