Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) YANAGIDA Satoshi and YAMAUCHI Nobuyoshi,Description of an Arc-Polygon Relation for Efficient Management of Multi-layer Polygon,Theory and Applications of GIS,13405381,Geographic Information Systems Association,1997,5,1,39-45,https://cir.nii.ac.jp/crid/1390001204474872320,https://doi.org/10.5638/thagis.5.39