1. Abrahams, J.R. and Coverley, G.P., Signal Flow Analysis, London: Pergamon, 1965.
2. Adushkin, V.V., Rodionov, V.N., Turuntaev, S.B., and Yudin, A.E., Seismicity in the oil field, Oilfield Rev., 2000, vol. 12, no. 2, pp. 2–17.
3. Adushkin, V.V., Ovchinnikov, V.M., Sanina, I.A., and Riznichenko, O.Yu., Mikhnevo: From seismic station no. 1 to a modern geophysical observatory, Izv.,Phys. Solid Earth, 2016, vol. 52, no. 1, pp. 105–116. https://doi.org/10.1134/S1069351315060014
4. Aki, K. and Richards, P.G., Quantitative Seismology: Theory and Methods, 2 vols., San Francisco: Freeman, 1980.
5. Al-Alaoui, M.A., Low-frequency differentiators and integrators for biomedical and seismic signals, IEEE Trans.Circuits Syst., I: Fundam. Theory Appl., 2001, vol. 48, no. 8, pp. 1006–1011.