Crystal structure of bis(3-hydroxypyridinium) 1,4-benzenedicarboxylate, (C5H5ONH)2(C8H4O4) - Yao Jing-Cai; Qin Jian-Hua; Sun Qing-Bo; Qu Li; Li Yan-Ge (Zeitschrift für Kristallographie - New Crystal Structures, 2007)