1. Preliminary account of kimberlite intrsions from the Fredriksha˚b district, South West Greenland;Andrews;Grønlands Geol. Undersøk. Rpt.,1971
2. Scale model experiments on flowage differentiation in sills;Bhattacharji,1967
3. The petrology of some kimberlite occurrences in the Barkeley West district, Cape Province;Bosch;Trans. Geol. Soc. South Africa,1971
4. Quantitative electron-probe analysis of pyroxene;Boyd;Carnegie Inst. Washington Yearbook,1967
5. Iron-titanium oxides minerals and synthetic equivalents;Buddington;Jour. Petrology,1964