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Figure 2 from Water, water, everywhere: Phase diagrams of ordinary water substance. L. Glasser (2004) J. Chem. Educ.81: 414-418.
Figure 3 from Equations of state and phase diagrams. L. Glasser (2002) J. Chem. Educ.79: 874-876.
p = pressure
Vm = molar volume
T = absolute temperature