Volumetric Properties of Mixed Electrolyte Aqueous Solutions at Elevated Temperatures and Pressures. The Systems CaCl2-NaCl-H2O and MgCl2-NaCl-H2O to 523.15 K, 70 MPa, and Ionic Strength from (0.1 to 18) mol·kg-1 Zezin, D.; Driesner, T.; Scott, S.; Sanchez-Valle, C.; Wagner, T.; Journal of Chemical & Engineering Data 2014, 59, 2570-2588