Ebbecke, J*; Fletcher, N E; Ahlers, F J*; Hartland, A; Janssen, T J B M (2003) Study of the limitations of the quantized acoustic current technique at PTB and NPL. IEEE Trans. Instrum. Meas., 52 (2). pp. 594-8.

Ebbecke, J*; Fletcher, N E; Ahlers, F J*; Hartland, A; Janssen, T J B M (2002) Study of the limitations of quantized acoustic current devices at PTB and NPL. In: 2002 Conference on Precision Electromagnetic Measurements (CPEM), 16-21 June 2002, Ottawa, Canada.