1. The Lovozero Pluton and its Ore Deposits;Eliseev,1953
2. The Lovozero Alkali Massif;Vlasov,1966
3. Apatite Deposits of the Khibiny Tundres;Ivanova,1963
4. Peculiarities of the Khibiny Massif Structure and Apatite-Nepheline Deposits;Onokhin,1975
5. New Khibiny Apatite Deposits,1982