1. A digitally recording offshore tide gauge;Collar,1970-1970
2. Deep sea tides;Cartwright;Sci. J.,1969
3. Deep sea tides: A program;Munk;Science,1967
4. A sea-bed capsule for measuring tidal pressure variations at depths up to 4000m;Spencer;Inst. Elect. & Electron. Engr., N.Y.,1974
5. Deep sea instrument capsule;Snodgrass;Science,1968