1. S. Amari, Differential-Geometrical Methods in Statistics (Springer, Berlin, 1985)
2. H.B. Callen, Thermodynamics and an Introduction to Thermostatistics (Wiley, New York, 1985)
3. C.R. Rao, Bull. Calcutta Math. Soc. 37, 81 (1945)
4. F. Weinhold, Classical and Geometrical Theory of Chemical and Phase Thermodynamics (Wiley, Hoboken, 2009)
5. G. Ruppeiner, Springer Proc. Phys. 153, 179 (2014)