1. C. Edvardsen: ACI Mater. 1, 1999, 96, 448–454.
2. W. Khushefati: ‘Healing of cracks in concrete’, PhD thesis, Imperial College London, UK, 2004.
3. ‘The relevance of cracking in concrete to corrosion of reinforce-ment’, Concrete Society Technical Report 44, 1995.
4. F. Buchholz and A. Graham: ‘Modern superabsorbent polymer technology’, 154–157, 194–197; 1998, New York, John Wiley & Sons.