G. F. Appell, J. L. Chapin, G. W. Bowers;
Aanderaa DCM 12 doppler current meter performance characteristics, Proceedings of the IEEE Fifth Working Conference on Current Measurement, vol. 5,
pp. 43 - 46, February 1995.
Gerald F. Appell, J. Lee Chapin, Neil Trenaman;
Tests of two prototype Workhorse ADCP's, Proceedings of MTS/IEEE OCEANS'95 Conference,
pp. 1367 - 1371, September 1995.