1. 1) Y. Honma: Revised records of the large marine animals stranded on the coast of Niigata and Sado Island in the Sea of Japan. Spec. Publ. Sado Mar. Biol. Stat., Niigata Univ., 5, 1-39 (1990).
2. 2) Y. Honma: Records of marine mammals found and stranded on the coast of Niigata District and Sado Island, Sea of Japan. Monog. Assoc. Geol. Collabr. Japan, 43, 155-165 (1994a).
3. 3) Y. Honma, K. Minowa, Y. Nakamura, and A. Aoyagi: Remarkable strandings of Pacific white sided dolphins, Lagenorhynchus obliquidens Gill, 1865, and other cetaceans on the coast of Niigata District, Sea of Japan, during severe winter conditions, 1992-1993. Bull. Biogeogr. Soc. Japan, 48, 81-86 (1993).
4. 4) Y. Honma, Y. Yamazaki, A. Chiba, and S. Oka: Histological observations on some internal organs of the harbor porpoise, Phocoena phocoena, stranded on the Niigata coast, Sea of Japan. Rep. Sado Mar. Biol. Stat., Niigata Univ., 22, 1-12 (1992).
5. 5) Y. Honma: Histological studies on the ovaries of beaked whales, Mesoplodon stejnegeri, stranded on the coast of Niigata District, Sea of Japan. Rep. Sado Mar. Biol. Stat., Niigata Univ., 24, 1-10 (1994b).