Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Tomonaga Masaki and Kumazaki Kiyonori and Feng Shanshan and Koopman Sarah and Ryckewaert Barbara and Pereira Carlos and Matsuzawa Tetsuro,Visual concept formation in chimpanzees and horses,Primate Research Supplement,,Primate Society of Japan,2019-07-01,35,0,45-45,https://cir.nii.ac.jp/crid/1390002184884854912,https://doi.org/10.14907/primate.35.0_45_1