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2. Mobile Statfjord “A” Platform Dropped Object Study;Gjeldsvik,1977
3. The design of an impact resistant roof for platform wellhead modules;Ellis;OTC 3907,1980
4. Statfjord Development Project Phase III—Platform C. Test Report—Dropped Objects. Full scale test of drill collar on pipe rack;Wenger,1981
5. Statfjord Development Project Phase III—Platform C. Test Report—Dropped Objects. Full scale test for well-head areas (M04, M06, M12);Wenger,1981