31) A Report on GRANIT Trials at Thoresby Colliery, (UK Coal plc) March / April 2002, AMEC internal document.
32) Chappell, M, Jackson , BH, Starkey, A: Anchorage Testing and Monitoring. Tunnels and Tunnelling, September 2003.
33) Chappell, M et al: Rock/Cable Bolt Integrity Testing Using GRANIT - Recent Field Application, published and presented at Aachen International Mining Symposium June 2004.
34) Chappell, M, Jackson, BH: Condition Monitoring using Impact Testing on Buried Metal Elements, presentation to Transportation Research Board, Washington, January 2004.
35) Littlejohn, GS, Chappell, M: Non-Destructive Condition Monitoring of Ground Anchors, ADSC Conference on QA/QC and Verification of Drilled shafts, Anchors and Micropiles, November 2005, Dallas , Texas .
