Published in Comptes rendus hebdomadaires des séances de l'Académie des sciences, in 1917, in volume 165, pages 657-659

Created: 2012-07-18, modified: 2012-07-18

Published in Comptes Rendus Hebdomadaires des Séances de l'Académie des Sciences. Paris, in 1917, in volume 165, pages 987-990

Created: 2010-06-27, modified: 2023-02-16