RT Journal Article SR Electronic(1) A1 MacBeth, C. A1 S. Yardley, G.YR 1991 T1 Optimal estimation of crack strike JF , VO OP SP cp-42-00162 DO https://doi.org/10.3997/2214-4609.201410904 PB European Association of Geoscientists & Engineers, SN 2214-4609, AB , UL https://www.earthdoc.org/content/papers/10.3997/2214-4609.201410904