Note 156 — Chapter IX · GENERAL PROPERTIES OF THE CERIUM AND YTTRIUM GROUPS
Reading edition
Compare behaviour of thorium and zirconium, Ch. XVI.
[157] Melikoff and Pissarjewski, Zeitsch. anorg. Chem. 1899, 21, 70; Melikoff and Klimento, Chem. Zentr. 1902, 1, 172.