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2. Review of the NDT market and performance of NDT companies operating in the UK;Khalid;Insight,1999
3. NDT techniques for railroad wheel and gauge corner inspection;Pohl;NDT and E Int.,2004
4. Intelligent pigging developments for metal loss and crack detection;Jansen;Insight,1995
5. Screening of weld quality using the metal magnetic memory;Doubov;Weld. World,1998