Belay, A.N. et al. 2020. Crystal structure of 4-(dimethylamino)pyridin-1-ium-2,5-dichloro-3,6-dioxocyclohexa-1,4-diene-1,4-bis(olate) 4-dimethylaminopyridine (2:1) water undeca-solvate. European Journal of Chemistry. 11, 3 (Sep. 2020), 255–260. DOI:https://doi.org/10.5155/eurjchem.11.3.255-260.2019.