Wendlandt, R. (1977) “The system K2O-MgO-Al2O3-SiO2-H2O-CO2: phase relations of the joins Ph-H2O-CO2 and Ph-En-Mag at high temperatures and high pressures and applications to the genesis of alkalic magmas”, International Kimberlite Conference: Extended Abstracts, 2(1), pp. 355–357. doi: 10.29173/ikc1047.