Present Status of the Japanese Marsh Warbler (Megalurus pryeri) and Its Conservation. 論文 Hisashi Nagata ·1997-01-01 ·『Yamashina Chōrui Kenkyūjo Kenkyū hōkoku/Yamashina Chourui Kenkyuujo kenkyuu houkoku』 29(1) pp. 27-42 doi:10.3312/jyio1952.29.27