1. J. W. Steed and P. A.Gale , Supramolecular Chemistry; From Molecules to Nanomaterials , John Wiley and Sons , Chichester , 2012
2. R. Vilar , Recognition of Anions , in Structure and Bonding , ed. D. M. P. Mingos , Springer Verlag , Berlin , 2008
3. J. L. Sessler , P. A.Gale and W.-S.Cho , Anion Receptor Chemistry , The Royal Society of Chemistry , Cambridge, UK , 2006
4. J. L. Atwood and J. W.Steed , Encyclopedia of Supramolecular Chemistry , Marcel Dekker , New York , 2004
5. A. Bianchi , K.Bowman-James and E.García-España , Supramolecular Chemistry of Anions , Wiley-VCH , New York , 1997