Collect. Czech. Chem. Commun.
1935, 7, 57-68
https://doi.org/10.1135/cccc19350057
Contribution a la connaissance des terres rares (Partie I)
J. S. Štěrba-Böhm and M. Melichar
Collect. Czech. Chem. Commun.
1935, 7, 57-68
https://doi.org/10.1135/cccc19350057