Citation: Chen, Chun-Long; Ellsworth, Joseph M.; Goforth, Andrea M.; Smith, Mark D.; Su, Cheng-Yong; Zur Loye, Hans-Conrad (2006). A new 2-carboxylate-substituted 4,4'-bipyridine ligand: coordination chemistry of 4,4'-bipyridine-2-carboxylic acid and its synthetic intermediate 2-methyl-4,4'-bipyridine.. Dalton transactions (Cambridge, England : 2003), , pp. 5278-5286.