[1]
E. I. Semenov, M. E. Kazakova, and R. A. Aleksandrova, “1. The Lovozero Minerals-Nenadkevichite, Gerassimovskite and Tundrite- from Ilímaussaq, South Greenland”., Meddr Grønland, vol. 181, no. 5, pp. 1–12, Oct. 1967.