Convergence to the structured coalescent process. - Ryouta Kozakai; Akinobu Shimizu; Morihiro Notohara (J. Appl. Probab., 2016)

User Identification Using Neural Network Based on Japanese Flick Input on Smartphone. - Toshiki Kobayashi; Ryouta Kozakai; Yuji Watanabe (GCCE, 2019)

Tendency Analysis of Python Programming Classes for Junior and Senior High School Students. - Ryouta Kozakai; Toshiki Kobayashi; Wenxuan Zhang; Yuji Watanabe (KES, 2022)