@article{weko_16745_1, author = "Hitoshi,Furusawa and Yoshiki,Kinoshita", title = "Essentially Algebraic Structure for Kleene Algebra with Tests and Its Application to Semantics of While Programs", journal = "情報処理学会論文誌プログラミング(PRO)", year = "2003", volume = "44", number = "SIG04(PRO17)", pages = "47--53", month = "mar" }