2. Efficient Low-Level Counting System for C11
J. B. Cumming and R. Hoffmann, Rev. Sci. Inst., 29, 1104 (1958).
Articles 1950-1959
1. Heats of Formation of Hexacalcium Dialumino Ferrite and Dicalcium Ferrite
E. S. Newman and R. Hoffmann, J. Res. NBS, 56, 313 (1956).