Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Ikeda Ayaka and Kobayashi Tessei and Itakura Shoji,Omission of Case Markers in Child-Directed Speech by Japanese-Speaking Caretakers,Cognitive Studies: Bulletin of the Japanese Cognitive Science Society,13417924,Japanese Cognitive Science Society,2016,23,1,8-21,https://cir.nii.ac.jp/crid/1390282679461396096,https://doi.org/10.11225/jcss.23.8