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7010019568 from books.google.com
... 70 , 100 ( 1956 ) . 8. H. C. Theuerer , Trans . AIME , 206 , 1316 ( 1956 ) . 9. E. Buehler , Rev. Sci . Instr . , 28 , 452 ( 1957 ) . 10. H. C. Theuerer , private communication . 11. R. E. Stajdohar and H. H. Hall , private ...