Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Haiyu Wang and Xuelian Li and Juntao Gao and Wei Li,MOBT: A kleptographically-secure hierarchical-deterministic wallet for multiple offline Bitcoin transactions,Future Generation Computer Systems,0167-739X,Elsevier BV,2019-12,101,,315-326,https://cir.nii.ac.jp/crid/1360298345263274240,https://doi.org/10.1016/j.future.2019.04.055