Also publishes as (Helen A. Lewis)
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Gilbertson, David, McLaren, Sue, Stephens, Mark, Hunt, Chris, Rose, James, Dykes, Alan, Grattan, John, Bird, Michael, Lewis, Helen, Kealhofer, Lisa, Banda, Richard Mani, Bandang, Dana, Daly, Patrick, Rushworth, Garry, Pyatt, Brian, Thompson, Gill B., Piper, Philip J., and Rabett, Ryan J. (2013) The cave entrance sequences and environmental change. In: Barker, Graeme, (ed.) Rainforest Foraging and Farming in Island Southeast Asia: the archaeology of the Niah Caves, Sarawak. McDonald Institute for Archaeological Research, Cambridge, UK, pp. 71-134.
Barker, Graeme, Barton, Huw, Bird, Michael, Daly, Patrick, Datan, Ipoi, Dykes, Alan, Farr, Lucy, Gilbertson, David, Harrisson, Barbara, Hunt, Chris, Higham, Tom, Kealhofer, Lisa, Krigbaum, John, Lewis, Helen, McLaren, Sue, Paz, Victor, Pike, Alistair, Piper, Phil, Pyatt, Brian, Rabett, Ryan, Reynolds, Tim, Rose, Jim, Rushworth, Garry, Stephens, Mark, Stringer, Chris, Thompson, Jill, and Turney, Chris (2007) The 'human revolution' in lowland tropical Southeast Asia: the antiquity and behavior of anatomically modern humans at Niah Cave (Sarawak, Borneo). Journal of Human Evolution, 52 (3). pp. 243-261.
Bird, Michael I., Boobyer, Ella M. , Bryant, Charlotte, Lewis, Helen A., Paz, Victor, and Stephens, W. Edryd (2007) A long record of environmental change from bat guano deposits in Makangit Cave, Palawan, Philippines. Earth and Environmental Science Transactions of the Royal Society of Edinburgh, 98 (1). pp. 59-69.