1. Asano, K. (1950): Check list of Tertiary smaller foraminifera of Japan. Journal of Paleontology, 24, 307-321.
2. Asano, K. (1954): Studies on the ecology and sedimentation of Matsukawa-Ura, Soma City, Fukushima Prefecture. General remarks (interim report). Taisekigaku Kenkyu, 6, 1-18.*
3. Asano, K. (1970): Micropalaeontology (1) (Bikoseibutsugaku Jokan). Asakura Shoten.*
4. Bando, Y. (1961): Biostratigraphical correlation of the lower and middle Triassic formations by ammonoid fossils from Japan. Journal of the Geological Society of Japan, 67, 323-334.
5. Belousov, V.V. (1956): Geotectonics 1 (Kozo Chishitsugaku 1) supervised by Minato, M. and Ijiri, S., Tsukiji Shokan.*