著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) Mahmoud Kamel and Walaa Hamouda and Amr Youssef,Ultra-Dense Networks: A Survey,IEEE Communications Surveys & Tutorials,1553-877X,Institute of Electrical and Electronics Engineers (IEEE),2016,18,4,2522-2545,https://cir.nii.ac.jp/crid/1360579819241399680,https://doi.org/10.1109/comst.2016.2571730