Evidence of Nonlinear Seismic Effects in the Earth from Downhole Distributed Acoustic Sensors. - Alexey Yurikov; Boris Gurevich; Konstantin Tertyshnikov; Maxim Lebedev; Roman Isaenkov; Evgenii Sidenko; Sinem Yavuz; Stanislav Glubokovskikh; Valeriya Shulakova; Barry Freifeld; Julia Correa; Todd J. Wood; et al. (Sensors, 2022)