Published in Anales de la Sociedad Cientifica Argentina, in 1944, in volume 138, pages 158-161

Created: 2016-02-13, modified: 2016-02-13

Published in Anales De La Sociedad Cientifica Argentina, in 1944, in volume 138, issue 3, pages 135

Created: 2016-02-12, modified: 2016-02-12