1. Alkemper, J. and Fuess, H., The crystal structures of NaMgPO4, Na2CaMg(PO4)2, and Na18Ca13Mg5(PO4)18: new examples for glaserite-related structures, Ztschr. Kristal., 1998, vol. 213, pp. 282–287.
2. Anthony, J.W., McLean, W.J., and Laughon, R.B., The crystal structure of yavapaiite: a discussion, Am. Mineral., 1972, vol. 57, pp. 1546–1549.
3. Bol’shoe treshchinnoe Tolbachinskoe izverzhenie, Kamchatka, 1975–1976 (The Great Fissure Tolbachik Eruption, Kamchatka, 1975–1976, Fedotov S.A., Ed., Moscow: Nauka, 1984.
4. Bykova, E.Y., Berlepsch, P., Kartashov, P.M., Bruegger, J., Armbruster, T., and Criddle, A.J., Vergasovaite Cu3O[(Mo,S)O4[SO4], a new copper-oxy-molybdate-sulfate from Kamchatka, Schweiz. Miner. Petrogr., 1998, vol. 78, pp. 479–488.
5. Chesnokov, B.V., Bazhenova, L.F., Bushmakin, A.F., et al., New minerals from burnt dumps of the Chelyabinsk coal basin (communication seven), Ural. Mineral. Sbornik, 1995, no. 4, pp. 3–28.