Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) TAKAKUWA Tadasu,A GEOMORPHOLOGICAL STUDY ON THE PITCHING ELEVATION OF THE ASAN MOUNTAINLAND,Geographical Review of Japan,04496213,The Association of Japanese Geographers,1963,36,11,675-685,https://cir.nii.ac.jp/crid/1390282679310593792,https://doi.org/10.4157/grj.36.675