Analysis on MathSciNet database: some preliminary results. - Serge Richard; Qiwen Sun (CoRR, 2019)

Bibliometric analysis on mathematics, 3 snapshots: 2005, 2010, 2015. - Serge Richard; Qiwen Sun (CoRR, 2021)

Agent-based model and data assimilation: Analysis of COVID-19 in Tokyo. - Chang Sun; Serge Richard; Takemasa Miyoshi (CoRR, 2021)

Analysis of COVID-19 in Japan with extended SEIR model and ensemble Kalman filter. - Qiwen Sun; Takemasa Miyoshi; Serge Richard (J. Comput. Appl. Math., 2023)

Topological Crystals: Independence of Spectral Properties with Respect to Reference Systems. - Koichi Kato; Serge Richard (Symmetry, 2024)