1. Ankeny MD, Forbes JR. 2000. Constant Hydraulic Head Moat and Method for Controlling Regional Ground Water Flow. U.S. Patent No. 6,139,221A.
http://www.google.com/pat ents/US6139221?dq=%22ankeny+moat%22
. Accessed January 20, 2014.
2. Brewster ML, Annan AP, Greenhouse JP, Kueper BH, Olhoeft GR, Redman JD, Sander KA. 1995. Observed migration of a controlled DNAPL release by geophysical methods. Ground Water 33:977–987.
3. Falta RW, Rao PSC, Basu N. 2005. Assessing the impacts of partial mass depletion in DNAPL source zones: I. Analytical modeling of source strength functions and plume response. J Contam Hydrol 78:259–280.
4. Gerhard JI, Pang T, Kueper BH. 2007. Time scales of DNAPL migration in sandy aquifers examined via numerical simulation. Ground Water 45:147–157.
5. Kavanaugh MC, Rao PSC, Abriola L, Cherry J, Newell C, Sale T, Destouni G, Falta R, Shoemaker S, Siegrist R, Major D, Mercer J, Teusch G, Udell K. 2003. The DNAPL Remediation Challenge: Is There a Case For Source Depletion? EPA/600/R-03/143. USEPA National Risk Management Research Laboratory, Cincinnati, OH, USA. 129 p.