1. Earliest stone industries on the North Pacific Coast of North America;Ackerman;Arctic Anthropology,1992
2. Ishikariteichitai Nanbu niokeru Kyusekkijidai no Sekkigunkanheni no Kenkyu [A Study of Lithic Assemblage Variability in the Paleolithic Assemblages on the Southern Ishikari Lowland];Akai,2005
3. Pleistocene peoples of Japan and the peopling of the Americas;Akazawa,1999
4. Nihon no Saisekkaku [Aspects of microblade cores in Japan];Anbiru;Sundai Shigaku [Sundai Historical Review],1979
5. Diffusion and innovation from the perspective of wedge shaped cores in Alaska and Japan;Andrefsky,1987