Ladrière, Jean (Personal Name)
- Ladrière, J. (Jean), 1921-2007
Raeymaeker, L. de. La relativité de notre connaissance, 1948
Fondements d'une théorie de la justice, 1984: title page (Jean Ladrière) page 267 (born 1921)
La nature de la vérité scientifique, 1985: title page (J. Ladrière) page 7 (Jean Ladrière)
Académie royale de Belgique website, viewed February 23, 2016: link to Who's who? page (Jean Ladrière, philosopher and professor at the Université catholique de Louvain; born in Nivelles, September 7, 1921; died in Ottignies-Louvain-la-Neuve, November 26, 2007; elected to the Académie royale on May 9, 1977) http://www.academieroyale.be/n15197/Jean.Ladri%C3%A8re