| Author | Titles | | 1.
| Congreso Internacional de Historia del Arte, 23, Granada, 1973 | 1 | | 2.
| Congreso Internacional de Tipografía, 01, Valência, 2004 | 1 | | 3.
| Congreso Internacional de Tipografía, 2o, Valência, 2006 | 1 | | 4.
| Congreso Internacional sobre San Bernardo e o Cister en Galícia e Portugal, Ourense, 1991 | 1 | | 5.
| Congreso Nacional de Filosofía, 01, Mendoza, 1949 | 1 | | 6.
| Congress of the Association Internationale de Bibliophilie, 27, Cracóvia, 2011 | 1 | | 7.
| Congress of the Internacional Association of Empirical Aesthetics, 18o, Lisboa, 2004 | 1 | | 8.
| Congress of the International Association of Art Critics, Suíça, 1978 | 1 | | 9.
| Congress of the International Committee of the History of Art, 33, Nuremberga, 2012 | 1 | | 10.
| Congress of the International Comparative Literature Association, 16, Mossel Bay (África do Sul), 2000 | 1 |
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