^Pekov I. V., Chukanov N. V., Zadov A. E., Rozenberg K. A. and Rastsveateva R. K. 2003: Alsakharovite-Zn, NaSrKZn(Ti,Nb)4(Si4O12)2(O,OH)4.7H2O, a new mineral of the labuntsovite group from Lovozero Massif, Kola Peninsula. Zapiski Vserossiyskogo mineralogicheskogo obshchestva, 132(1), pp. 52-58 (in Russian); [1]