Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) 宋 彤 and 島田 行恭・鈴木 和彦,Fault Tree Synthesis for Sequential Contml Circuit based on Automatically Searched Signal Path Basic Algorithm ,Journal of Japan Society for Safety Enginennring,05704480,Japan Soceiety for Safety Engineering,1998,37,2,95-103,https://cir.nii.ac.jp/crid/1390282681219703936,https://doi.org/10.18943/safety.37.2_95