11. Around this time he entered the �cole pratique des hautes �tudes as an instructor in history. 12. Leclerc's illustrated " G�om�trie Pratique " was published in Paris in 1668. 13. He also graduated from the �cole pratique des hautes �tudes and the �cole Nationale des Chartes. 14. In 1974, he was elected a research director at the �cole pratique des hautes �tudes. 15. In 1828 1830 he published his " Cours complet d'economie politique pratique ". 16. Eugene Vinaver studied in �cole pratique des hautes �tudes where he was a pupil of Joseph Bedier. 17. He attended the University of Paris during May 1968 to gain a Certificat Pratique de Langue Fran�aise. 18. He matriculated into the Practical School of Advanced Studies ( la �cole Pratique des Hautes �tudes ). 19. L'�cole pratique des hautes �tudes commerciales ( EPHEC ) is a university college in Belgium. 20. One of the founders of structuralism, Roland Barthes, attended Benveniste's seminars at �cole Pratique .