Before I could respond, my cell phone played a Chopin etude.
Schlumberger has written on the coins and seals of the Latin East in various publications; while Rey has written an Etude sur les monuments de l'architecture militaire (Paris, 1871).
He settled in England in 1740, published several books, and wrote the preface to Gibbon's first work, Etude de la litterature.
Lieby, Etude sur le thedtre de Marie-Joseph Chenier (1902).
The theoretical aspect is discussed in Leon Guillet's Etude theorique des alliages metalliques (2904).