1. Dimensional analysis (Yale University Press, 1931).
2. Ueber irreversible Strahlungsvorgänge
3. in: The theory of heat radiation (Dover, New York, 1991), p. 173, Sect. 164 for Planck units (republished based on the original English edition of 1914 by F. Blakiston, Philadelphia).
4. in: Units and fundamental constants of Physics and Chemistry, edited by J. Bortfeldt and B. Kramer, (Springer-Verlag, Berlin, 1992), pp. 3–52 to 3–57.
5. Base units of the SI, fundamental constants and modern quantum physics