TY JOUR TI Reconstruction of in-situ stress state from data on widths of natural fractures in well surrounding rock masses KW critically stressed fractures KW in-situ stress inversion. JO Vestnik AGGE AU Dubinya, N.V. AU Ziganshin, E.R. AU Novikova, E.V. AU Gil'fanov, S.I. AU Voronov, I.A. AU Zaval'nikov, K.N. PY 2026 IS PB Association of Geologists, Geophysicists and Engineers