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Heath, E.A.; Singh, P.; Ebisuzaki, Y., Structure of p-hydroxybenzoic acid and p-hydroxybenzoic acid-acetone complex (2/1), Acta Crystallogr Sect C Cryst Struct Commun, 1992, 48, 11, 1960-1965, https://doi.org/10.1107/S0108270192002361 . [all data]