Links:
[1] http://213.151.109.9/sites/default/files/web_expo88.jpg
[2] http://213.151.109.9/es/javascript%3Ahistory.back%281%29
[3] https://www.arquitectes.cat/ca/system/files/users/174/bibliografia_expo88.pdf
[4] http://213.151.109.9/es/printpdf/print/16226