Garvin, L.J. & Kujak, S.K. Development and determination of a single-shell tank interim stabilization pumping strategy, report, June 12, 1995; (https://digital.library.unt.edu/ark:/67531/metadc794499/m1/1/: accessed December 15, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .