1. Specifying vibro stone columns;British Research Establishment, BRE,2000
2. Ground treatment by deep vibration;European Standard,2005
3. Discussion. Ground treatment by deep compaction;Greenwood,1976
4. Specification for ground treatment;Institution of Civil Engineers, ICE,1987
5. Brochure, Rütteldruckverdichtung, Hamburg Elbtunnel, Vierte Röhre;Keller Group,1997