Published in Comptes Rendus Hebdomadaires des Seances de l’Academie des Sciences, in 1899, in volume 128, pages 1344-1346

Created: 2014-01-06, modified: 2014-01-06

Published in Comptes Rendus De L'académie Des Sciences De Paris, in 1899, in volume 129, pages 1029-1031

Created: 2012-06-29, modified: 2014-01-06