F. FANG ZHAO, H. CONG, Z. TAO, S. FENG XUE, and Q. JIANG ZHU, “Formation of Host-Guest Complexes of 3-(aminomethyl)pyridine HCl Salt and Tetramethylcucurbit[6]uril”, ajc, vol. 21, no. 7, pp. 5737–5740, Mar. 2010.