Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) "Tanaka, Haruyoshi",Invariant measure of perturbed graph-directed IFS with degeneration (Integrated Research on the Theory of Random Dynamical Systems),RIMS Kokyuroku,1880-2818,京都大学数理解析研究所,2019-07,2115,,73-82,https://cir.nii.ac.jp/crid/1050566774764281472,