%0 Book %T A Semi-Delphi Exercise on Fluorspar and Manganese in Steelmaking %D 1974 %U https://nap.nationalacademies.org/catalog/20192/a-semi-delphi-exercise-on-fluorspar-and-manganese-in-steelmaking %> https://nap.nationalacademies.org/catalog/20192/a-semi-delphi-exercise-on-fluorspar-and-manganese-in-steelmaking %I The National Academies Press %C Washington, DC %G English %K %K Earth Sciences %P 70 %R doi:10.17226/20192