ДОПОЛНИТЕЛЬНОЕ СОГЛАШЕНИЕ между Российской Федерацией и Китайской Народной Республикой о российско-китайской государственной границе на ее Восточной части.
The Parties have agreed to apply boundary survey in the middle of the main channel or in the middle of the main branch of the boundary rivers. The exact position of the main channel or of the main branch of the boundary rivers shall be established in the process of border demarcation and shall be mapped. Appurtenance of the islands shall be established in accordance with the position of the main channel or the main branch of border river. The Parties shall also demarcate air space and subsoil.