Published in C.R. Soc. philom. Paris, in 1894, in volume 9, pages 3-5
Created: 2014-05-22, modified: 2014-05-22
Published in Compte Rendu Sommaire des Séances de la Société Philomathique de Paris, in 1894, in volume 17, pages 3-10
Created: 2013-07-16, modified: 2014-05-22