1. The state of earthquake prediction research in the Soviet Republics of Central Asia (in Russian);Asimov,1979
2. Course of the General Astronomy;Bakulin,1974
3. Radon variations and Earth tides in unventilated underground spaces;Barnet;Bull. Czech Geol. Surv.,1997
4. Variations of the number of weak and strong earthquakes for 1977–1998 years and their possible precursors;Barliaeva;Phys. Chem. Earth C Sol. Terr. Planet. Sci.,2001
5. Hydrogeochernical precursors in Kamchatka (Russia) related to the strongest earthquakes in 1988–1997;Biagi;Nat. Haz. Earth Sys. Sci.,2000