Cyclic polyethers and their complexes with metal salts, Journal of the American Chemical Society, vol.89, issue.10, pp.2495-7017, 1967. ,
DOI : 10.1021/ja00986a052
Spherands - ligands whose binding of cations relieves enforced electron-electron repulsions, Journal of the American Chemical Society, vol.101, issue.22, p.6752, 1979. ,
DOI : 10.1021/ja00516a048
Heteropoly and IsopolyOxometalates, Chem. Soc. Rev. Chem. Rev. Chem. Rev. J. Am. Chem. Soc. J. M Z. C, vol.110, issue.13110, pp.41-432, 1983. ,