Perkin, M P (2009) Report on EUROMET key comparison of multiples and submultiples of the kilogram (EUROMET.M.M-K2). NPL Report. ENG 13
Perkin, M P; Picard, A*; Lecolinet, M*; Fen, K*; Sardi, M*; Miiler, A*; Agarwal, A*; Jescheck, M*; Wüthrich, C* (2008) Final report, CCM key comparison CCM.P-K2, pressure (10 kPa to 120 kPa) absolute mode. Metrologia, 45 (Tech, ). 07002.
Perkin, M P (1997) A comparison of low differential pressure standards in the range 3 Pa to 1000 Pa. NPL Report. CMAM 3