Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) AOYAMA MASAFUMI and KOYAMA TAKUSHI,Correlation between liquefaction areas in Kamisu and Kashima Cities caused by the 2011 off the Pacific coast of Tohoku Earthquake and the time-series changes of distribution of gravel pits,Proceedings of the General Meeting of the Association of Japanese Geographers,,The Association of Japanese Geographers,2015,2015s,0,100332,https://cir.nii.ac.jp/crid/1390001205695585792,https://doi.org/10.14866/ajg.2015s.0_100332