Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Sakamoto Atsushi and Kitamura Shinichi,The Visual Simulation of the Tree Color in Four Seasons,JOURNAL OF APPLIED COMPUTING IN CIVIL ENGINEERING,1342-3894,Japan Society of Civil Engineers,1997,6,0,141-148,https://cir.nii.ac.jp/crid/1390282680198295808,https://doi.org/10.11532/journalac1992.6.141