Trainor-Guitton, W; Ramirez, A; Ziagos, J; Mellors, R & Roberts, J. An Initial Value of Information (VOI) Framework for Geophysical Data Applied to the Exploration of Geothermal Energy, article, January 22, 2013; (https://digital.library.unt.edu/ark:/67531/metadc830216/m1/1/: accessed August 16, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .