Ridler, N M; Morgan, A G (2008) New primary reference standard for vector network analyser calibration at millimetre wavelengths in coaxial line. Meas. Sci. Technol., 19 (6). 065103

Morgan, A G; Instone, I C*; Ridler, N M; Thompson, R P (2004) Comparing Internet-enabled VNA measurements with primary national standards. In: 63rd ARFTG Conference Digest, 11 June 2004, Fort Worth, TX, USA.

Ridler, N M; Morgan, A G (2003) ANAMET-032 : 'Live' dial gauge measurement investigation using type-N connectors. Technical Report. NPL, UK.

Morgan, A G; Ridler, N M; Salter, M J (2003) Generalized adaptive calibration schemes for precision RF network analyser measurements. IEEE Trans. Instrum. Meas., 52 (4). pp. 1266-1272.

Ridler, N M; Morgan, A G; Salter, M J (2002) Generalised adaptive calibration schemes for RF network analysers based on minimising the uncertainty of measurement. In: 60th Automatic Radio Frequency Techniques Group (ARFTG) Conference, 5-6 December 2002, Washington, DC, USA.

Morgan, A G; Ridler, N M; Salter, M J (2002) Generalized 'adaptive' calibration schemes for VNA's. In: Automated RF and Microwave Measurements Society (ARMMS) Meeting Proceedings Digest, 22-23 April 2002, Corby, Northamptonshire.

Morgan, A G; Ridler, N M; Salter, M J (2002) Generalized calibration schemes for precision RF vector network analyser measurements. In: 19th IEEE Instrumentation and Measurement Technology Conference Proceedings, May 2002, Anchorage, USA.

Dudley, R A; Morgan, A G; Ridler, N M (2002) iPIMMS - an Internet-based calibration and measurement service for vector network analysis. In: Automated RF and Microwave Measurements Society (ARMMS) Meeting - Conference Digest, 22-23 April 2002, Corby, Northamptonshire, UK.

Dudley, R A; Morgan, A G; Ridler, N M (2001) Advances in NPL's Internet calibration and measurement services for high-frequency electrical quantities. In: BEMC 2001- 10th British Electromagnetic Measurement Conference, 6-8 November 2001, Harrogate, UK.

Dudley, R A; Morgan, A G; Ridler, N M; Stevens, M J; Nesbitt, L*; Plummer, N J*; Scott, H J*; Smyth, S D*; Wylie, S* (2001) Maintaining an internet calibration facility: experiences gained from the first six months of operation. In: NCSL International Workshop and Symposium 2001, 29 July - 2 August 2001, Washington D.C, USA.