Published in Anales De La Sociedad Cientifica Argentina, in 1936, in volume 121, pages 1-24

Published in Anales De La Sociedad Cientifica Argentina, in 1936, in volume 121, pages 271-280

Published in Anales Soc Cient Argentina, in 1936, in volume 122, issue 5, pages 288-296

Published in Anales Soc Cient Argentina, in 1936, in volume 122, issue 6, pages 398-407