Published in Anales De La Sociedad Cientifica Argentina, in 1958, in volume 166, pages 41-44

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

Published in An Soc Cient Argentina, in 1958, in volume 166, issue 1/2, pages 35-40

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

Published in An Soc Cient Argentina, in 1958, in volume 166, issue 5/6, pages 115-121

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