1. N.Sh. Petro, I.M. El-Naggar, E.I. Shabana and N.Z. Misak, On the behaviour of hydrous tin oxide as an ion exchanger—Structural features, porous texture, capacity and pK values, Colloids Surfaces, accepted.
2. Study of the effect of the physicochemical properties of hydrous alumina and ceria on their ion exchange behaviour;El-Naggar,1984
3. On the factors governing the behaviour of ferric oxide gels as ion exchanger—Structural features, porous texture, capacity and acidity;Petro;Colloids Surfaces,1987
4. On the effect of the physicochemical properties of ferric oxide gels on their exchange behaviour;Misak;Reactive Polym.,1988
5. Fast proton conduction in inorganic ion exchange compounds;England;Solid State Ionics,1980