by Kalacheva, E. G., Rychagov, S. N., Koroleva, G. P., Nuzhdaev, A. A.
Published in Journal of volcanology and seismology (01.05.2016)

by Roginskii, V. A., Koroleva, G. P., Miller, V. B.
Published in Bulletin of the Academy of Sciences of the USSR Division of Chemical Science (01.06.1974)