The Rare EarthsNote 427 — Chapter XIV · THE ERBIUM AND YTTERBIUM GROUPS—YTTRIUM AND SCANDIUMReading editionMeyer, Winter and Speter, Zeitsch. anorg. Chem. 1911, 71, 65.◇Copy noteReturn to CHAPTER XIV THE ERBIUM AND YTTERBIUM GROUPS—YTTRIUM AND SCANDIUM