TY JOUR TI Two-dimensional acoustic seismic inversion for determining impedance of diffraction objects KW 2D seismic inversion KW acoustic impedance KW diffraction objects. JO Vestnik AGGE AU Protasov, M.I. AU Dmitrachkov, D.K. AU Lanshkov, D.A. PY 2026 IS PB Association of Geologists, Geophysicists and Engineers