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Title = {A risk assessment tool to quantify CO2 leakage potential through wells in mature sedimentary basins},  year = {2006}}    @article{Nordbotten2006, @article{Nordbotten2006dklfjg,  Author = {Nordbotten, J.M. and Celia, M.A.},  Journal = {Proceedings of the 16th Conference on Computational Methods in Water Resources},  Title = {Analysis of plume extent using analytical solutions for CO2 storage},