| Arzamastsev, Andrei., Yakovenchuk, Victor., Pakhomovsky, Yakov., Ivanyuk, Gregory (2008) Guidebook for 33rd International Geological Congress Excursion - The Khibina and Lovozero alkaline massifs:Geology and unique mineralization Vol. 47. IUGS - International Union of Geological Sciences. World of Stones 95: 5-6, p64. |