1. M. Krenzke, K. Hom, and J. Proffitt,Potential Hull Structures for Rescue and Search Vehicles of the Deep-Submergence Systems Project, David Taylor Model Basin, Washington DC, USA, Report 1985, pp. 1–53, March, 1965.
2. J. J. Healey,Exploratory Tests of Prolate Spheroidal Shells Under External Hydrostatic Pressure, David Taylor Model Basin, Washington DC, Report no. 1868, pp. 1–20, June, 1965.
3. J. J. Healey,Parametric Study of Unstiffened and Stiffened Prolate Spheroidal Shells Under External Hydrostatic Pressure, David Taylor Model Basin, Washington DC, Report no. 2018, pp. 1–35, August, 1965.