Abdelwahab, Nada Sayed, et al. “Determination of Dimenhydrinate and Cinnarizine in Combined Dosage Form in Presence of Cinnarizine Impurity”. European Journal of Chemistry, vol. 6, no. 4, Dec. 2015, pp. 475-81, doi:10.5155/eurjchem.6.4.475-481.1324.