1. Fetterly, L. C.Non-Stoichiometric Compounds; Mandelcorn, L., Ed.; Academic Press: New York, 1964; p 491.
2. Takemoto, K.; Sonoda, N.Inclusion Compounds; Atwood, J. L., Davies, J. E. D., MacNicol, D. D., Eds.; Academic Press: New York, 1984; Vol. 2, p 47.
3. Hollingsworth, M. D.; Harris, K. D. M.Comprehensive SupramolecularChemistry; Atwood, J. L., Davies, J. E. D., MacNicol, D. D., Vögtle, F., Eds.; Pergamon Press: Oxford, 1996; Vol. 6,pp 177−237.
4. Meldola Lecture: understanding the properties of urea and thiourea inclusion compounds
5. Des cristaux organiques d'intercroissance
incommensurables 1-D : les composés d'inclusion de l'urée