Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) YAMADA Koichi and MUKAIDONO Masao,Conditions of Existence of Fuzzy Explanations and Approximate Solutions in Fuzzy Abduction,Transactions of the Society of Instrument and Control Engineers,04534654,The Society of Instrument and Control Engineers,1998,34,9,1231-1236,https://cir.nii.ac.jp/crid/1390282679477958272,https://doi.org/10.9746/sicetr1965.34.1231