Note 577 — Chapter XXI · OTHER TECHNOLOGICAL USES OF THE CERIUM AND YTTRIUM ELEMENTS, ZIRCONIUM AND THORIUM
Reading edition
Meister, Lucius and Brüning, D. R. P. 158609, March, 1905.
Reading edition
Meister, Lucius and Brüning, D. R. P. 158609, March, 1905.