Boness, K. D., Holt, C.C. and Holt, R.P., (1984) A narrow band pulsed eddy current instrument for materials testing. Technical Report. NASA STI/Recon
Boness, K. D., Holt, C.C. and Holt, R.P., (1984) A narrow band pulsed eddy current instrument for materials testing. Report. NASA STI/Recon