Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Takeuchi Akihiro,Positive Holes Flowing through Stressed Igneous Rocks,IEEJ Transactions on Fundamentals and Materials,03854205,The Institute of Electrical Engineers of Japan,2008,128,4,307-310,https://cir.nii.ac.jp/crid/1390001204593508480,https://doi.org/10.1541/ieejfms.128.307