Motawea, Mohamed Sobhi, and Mahmoud Ali Abdelaziz. “Some Pyrazole Derivatives As Corrosion Inhibitors for Carbon Steel in Hydrochloric Acid Solutions”. European Journal of Chemistry, vol. 6, no. 3, Sept. 2015, pp. 342-9, doi:10.5155/eurjchem.6.3.342-349.1279.