2Nevala A. Alvin's pilots[ ED/OL]. http://www, whoi. edu/oceanus/viewArticle, do? id = 5599, 2005-08-13.
3Edward L B. Criteria for the selection, training and quali:fication of pilots for the deep submergence engineering and operations section[ R]. Woods Hole Oceanographic Institution Technical Memorandum 1968:DS-27.