Channell, J. E. T.; Curtis, J. H.; Flower, B. P. (2004): The Matuyama-Brunhes boundary interval (500-900 ka) in North Atlantic drift sediments. Blackwell Science for the Royal Astronomical Society, the Deutsche Geophysikalische Gesellschaft and the European Geophysical Society, International, Geophysical Journal International, 158 (2), 489-505, georefid:2004-069401