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) Johan S Löfgren and Rüdiger Haas,Sea level measurements using multi-frequency GPS and GLONASS observations,EURASIP Journal on Advances in Signal Processing,1687-6180,Springer Science and Business Media LLC,2014-04-11,2014,1,2014,https://cir.nii.ac.jp/crid/1363670319429597696,https://doi.org/10.1186/1687-6180-2014-50