1. A reconsideration of the East Indian letter classification of the Tertiary;Adams;Bull. Brit. Museum Natural History (Geology),1970
2. Barber, P.M., 1999. Sequence-stratigraphic analysis of the Pre-Paragua Limestone Section: Permit GSEC 95, Offshore SW Palawan, Philippines, internal report.
3. Evolution of the South China Sea: Revised ages for breakup and seafloor spreading;Barckhausen;Mar. Pet. Geol.,2014
4. Reply to Chang et al., 2014, Evolution of the South China Sea: Revised ages for breakup and seafloor spreading;Barckhausen;Mar. Pet. Geol.,2015