著者名,書名,版表示,出版者名,出版年,シリーズ名,番号,ISBN,ISSN,URL
"Takagi, Hideaki and Sakamaki, Ken-ichi",Symbolic moment calculation for the sojourn time in M/G/1 queues with Bernoulli feedback,,University of Tsukuba,1996,Institute of Socio-Economic Planning discussion paper series,,,,https://cir.nii.ac.jp/crid/1130000794416455808