Interaction Between Three Cucurbiturils and  Hydrochloride Salts of 4,4′-Dipyridyl and Its Derivates
MU Lan, XUE Sai-Feng, DU Ying, ZHAO Yun-Ji, ZHU Qian-Jiang, TAO Zhu
Chem. J. Chinese Universities . 2006, (4): 654 -659 .