Sprunger, Laura M.; Acree, William E. (William Eugene) & Abraham, M. H. (Michael H.). Comment on "Systematic Investigation of the Sorption Properties of Polyurethane Foams for Organic Vapors". [Washington, DC]. UNT Digital Library. http://digital.library.unt.edu/ark:/67531/metadc172346/. Accessed December 6, 2013.
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