Orimoto, Hisako, and Akira Ikuta. 2020. “Adaptive Method for State Estimation of Sound Environment System With Uncertainty and Its Application to Psychological Evaluation: Recent Perspecives”. Recent Advances in Science and Technology Research Vol. 2, June, 76-92. https://stm1.bookpi.org/index.php/rastr-v2/article/view/1538.