Verma, S. P. (1986). Fluid-mineral equilibrium in hydrothermal systems / R. W. Henley, A. H. Truesdell, P. B. Barton Jr., J. A. Whitney. Geofísica Internacional, 25(3), 477–479. https://doi.org/10.22201/igeof.00167169p.1986.25.3.1067