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Akiyama, Y. B.; Iwakuna, T. (2009). Discrepancy between the Distributions of the Freshwater Pearl Mussel Margaritifera laevis and its Hosts in the Abira River, Central Hokkaido, Japan. Venus (Journal of the Malacological Society of Japan). 67 (3-4): 199-205.
Akiyama, Y. B.; Iwakuna, T. (2009). Discrepancy between the Distributions of the Freshwater Pearl Mussel Margaritifera laevis and its Hosts in the Abira River, Central Hokkaido, Japan. Venus (Journal of the Malacological Society of Japan). 67 (3-4): 199-205.