1. T. Nagata, Rock Magnetism, rev. ed. (Maruzen, Tokyo, p. 350.
2. Formation of marine sedimentary iron ores;Borchert,1965
3. Eustatic changes in sea level;Fairbridge,1961
4. Analyses of spores and pollens at two sites in the floor of the Sea of Japan;Koreneva;Oceanology,1961