Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Uni Yoshikazu and Okabe Takahiro and Imai Yasutaka,"Sighting of a North Pacific right whale in the southern Okhotsk sea, off Shiretoko, Hokkaido",Japan Cetology,18813445,The Cetology Study Group of Japan,2014,24,0,23-25,https://cir.nii.ac.jp/crid/1390002184845612160,https://doi.org/10.5181/cetology.0.24_23