1. Wager, L. R. & Brown, G. M. Layered Igneous Rocks (Oliver & Boyd, Edinburgh, 1967).
2. McBirney, A. R. Nature 253, 691–694 (1975).
3. Irvine, T. N. in The Evolution of the Igneous Rocks, 50th Anniversary Perspectives (ed. Yoder, H. S. Jr) 245–306 (Princeton University Press, 1979).
4. Blank, H. R. & Gettings, M. E. Trans. Am. Geophys. Un. 54, 507 (1973).
5. Hoover, J. D. Yb. Carnegie Instn Wash. 77, 732–743 (1978).