@book{ 0-1178753042, title = {XI Bienal São Paulo: Raoul De Keyser, Etienne Elias, Hans Persoons, Roger Raveel, Pjeroo Roobjee}, address = {Brussel}, publisher = {[International Art Promotion Office of the Ministery of National Education and Flemish Culture]}, year = {1971}, language = {Portuguese}, language = {English}, note = {Ausstellungskatalog. - Text in engl. u. portugies. Sprache}, url = {https://katalog.gfzk.de/Record/0-1178753042} }