J. F. Denis, B. Ollivier; A new generation deep water multibeam echo sounder, Proceedings of IEEE OCEANS'94 Conference, pp. 239 - 243, September 1994.
François P. Parthiot, Jean-François Denis; A better way to navigate on deep sea floors, Proceedings of IEEE OCEANS'93 Conference, pp. 494 - 498, October 1993.