Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) SATO Tadanobu,STOCHASTIC PROCESS OF EARTHQUAKE MOTION PHASE AND ITS INHERENT FEATURES -Modeling of Group Delay Time with Indefinable Variance-,"Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE))",2185-4653,Japan Society of Civil Engineers,2017,73,2,344-363,https://cir.nii.ac.jp/crid/1390001205349328128,https://doi.org/10.2208/jscejseee.73.344