Davis, C.S., Thwaites, F.T., Gallager, S.M., Hu, Q.   2005.   A three-axis fast-tow digital Video Plankton Recorder for rapid surveys of plankton taxa and hydrography. [VPR].   Limnology and Oceanography Methods   3(2): 59-74.   doi.org/10.4319/lom.2005.3.59