An underwater network testbed: design, implementation and measurement. - James Peng Zheng; Jun-Hong Cui; Bing Wang 001; Keenan Ball; Lee Freitag (Underwater Networks, 2007)

Passive and active acoustics using an autonomous wave glider. - Brian Bingham; Nicholas Kraus; Bruce M. Howe; Lee Freitag; Keenan Ball; Peter Koski; Eric Gallimore (J. Field Robotics, 2012)