(Sei Wada, ‘The Natives of the Lower reaches of the Amur as Represented in Chinese Records’, Memoirs of the Research Department of Toyo Bunko, no. 10, 1938, pp. 40‒102) (Shina no kisai ni arawaretaru Kokuryuko karyuiki no dojin 支那の記載に現はれたる黒龍江下流域の土人( The natives on the lower reaches of the Amur river as represented in Chinese records), Tõagaku 5, vol . 1, Sept. 1939.) Wada, ‘Natives of the Lower Reaches of the Amur River’, p. 82. The references in the documents are to a people called the ‘Chi-li-mi’ (the term generally used in early Chinese texts to refer to the Nivkh) living next to the Ku-wu (Ainu).