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2. 1948 Hahn, H., & Rosenthal, A., Set Functions. The University of New Mexico Press, Albuquerque, New Mexico.
3. 1951 Dieudonné, J., Sur la convergence des suites de mesures de Radon. Anais. Acad. Brasil. Ci. 23, 21–38, 277–282.
4. 1951 Herring, C., Surface tension as a motivation for sintering. The Physics of Powder Metallurgy. Kingston, W.E. (ed.), McGraw Hill Book Co., Inc., New York.
5. 1953 Herring, C., The use of classical macroscopic concepts in surface-energy problems. Structure and Properties of Solid Surfaces. Gomer, R. & Smith, C.S. (eds.), The University of Chicago Press, Chicago, Illinois.