[文献書誌] Oda, H., Ikehara, K., Nakamura, K., Nakano, T., Nishimura, M., Khlystov, O.: "Paleomagnetic record from Academician Ridge, Lake Baikal : A reversal excursion at the base of marine oxygen isotope stage 6"Earth and Planetary Science Letters. 202. 117-132 (2002)