H. E. Hartnett, Keil, R. G., Hedges, J. I., and Devol, A. H.,
“Influence of oxygen exposure time on organic carbon preservation in continental margin sediments”,
Nature, vol. 391, no. 6667, pp. 572-574, 1998.
J. I. Hedges, Hu, F. S., Devol, A. H., Hartnett, H. E., Tsamakis, E., and Keil, R. G.,
“Sedimentary organic matter preservation: A test for selective degradation under oxic conditions”,
American Journal of Science, vol. 299, no. 7-9, pp. 529-555, 1999.