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2. Problematiche relative alla sistemazione in caverna di centrali nucleari;Grifoni;Energia Nucleare,1989
3. Underground siting of nuclear power plants with emphasis on the “cut and cover” technique;Kroger;Nuclear Eng. & Design,1976
4. Safety consideration and economic advantage of a new underground nuclear power plant design;Lyczkowski;Nuclear Eng. & Design,1979
5. ‘Underground construction of nuclear power reactors’, Swiss Federal Institute for Reactor Research;Pinto;Nuclear Eng. & Design,1980