%0 Journal Article %A Lu, G. %A Ursin, B. %T Improved traveltime tomography applied to cross-well seismic data %D 1992 %J , %V %@ 2214-4609 %C cp-45-00173 %R https://doi.org/10.3997/2214-4609.201410511 %I European Association of Geoscientists & Engineers, %X %U https://www.earthdoc.org/content/papers/10.3997/2214-4609.201410511