1. G. L. McClung IV. Acidizing materials and methods and fluids for earth formation protection. US 20130333892 A1, U.S. Patent 2013, Application No. 13/815,494.
2. Production Enhancement with Acid Stimulation;Kalfayan,2008
3. J. P. Engle, B. R. Keeney. Prevention of ferric ion corrosion using acid cleaning solution containing hydrogen sulfide and an aldehyde corrosion inhibitor. US Patent No. 3514410, May 26, 1970.
4. B. R. Keeney. Corrosion inhibitor composition. US Patent No. 3404094, October 1, 1964.