1. Comparison of electromagnetic techniques for nondestructive inspection of ferromagnetic tubing;Krzywosz;Mater Eval,1990
2. Back to basics: remote field Eddy current for examination of ferromagnetic tubes;Mackintosh;Mater Eval,1996
3. NDE for carbon steel heat exchanger tube support plates and tube fretting. EPRI Report 1011252, Charlotte, NC, March 2005.
4. Schempf H, Vradis G. Explorer: long-range untethered real-time live gas main inspection system, Natural gas technologies II conference, February 8–11, 2004, Gas Technology Institute, GTI-04/0012, Chicago, IL.
5. An inspection robot for unpiggable gas lines;Torbin;Pipeline World,2005