1. Bruker (2002). SMART. Bruker AXS Inc., Madison, Wisconsin, USA.
2. Bruker (2003). SAINT-Plus. Bruker AXS Inc, Madison, Wisconsin, USA.
3. LiuW. L., LiuX. F., LuY. & HuX. Y. (2006). J. Coord. Chem. pp. 721–728.
4. LiuW. L., SongY., LiY. Z., ZouY., DangD. B., NiC. L. & MengQ. J. (2004). Chem. Commun. pp. 2946–2947.
5. Sheldrick, G. M. (2004). SADABS. University of Göttingen, Germany.