%0 Journal Article %A B. Keating, P. %A Pilkington, M. %T Apparent density mapping from gravity data using the walsh transform %D 1991 %J , %V %@ 2214-4609 %C cp-42-00241 %R https://doi.org/10.3997/2214-4609.201410983 %I European Association of Geoscientists & Engineers, %X %U https://www.earthdoc.org/content/papers/10.3997/2214-4609.201410983