1. Burns, R. G. & Burns, V. M. Phil. Trans. R. Soc. A285, 249–258 (1977).
2. Burns, V. M. & Burns, R. G. Am. Miner. 63, 827–831 (1978).
3. Burns, V. M. & Burns, R. G. in Sur La Genèse des Nodules de Manganese (ed. Laloa, C.) (Colloq. Int. CNRS, no. 289, in the press).
4. Straczek, J. A., Horen, A., Ross, M. & Warshaw, Ch. M. Am. Miner. 45, 1174–1184 (1960).
5. Burns, R. G. & Burns, V. M. in Marine Manganese Deposits (ed. Glasby, G. P.) 185–248 (Elsevier, Amsterdam, 1977).