Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) "岡田, 登 and OKADA, Noboru",Diffusion Process of a New Variety in a Vegetable Region on the Shimousa Upland,REGIONAL STUDIES,03896641,立正地理学会,2006-11-30,47,1,1-10,https://cir.nii.ac.jp/crid/1050854718466278528,