AMS Radiocarbon dating of paleosols intercalated with tephra layers from Mayon Volcano, southern Luzon, Philippines: A preliminary report - Mirabueno, Ma.; Okuno, Mitsuru; Nakamura, Toshio; Newhall, Christopher; Kobayashi, Tetsuo (Kazan, Bulletin of the Volcanological Society of Japan, 2006)