TY JOUR TI Lancang-Mekong Cooperation and China's Policy in the Greater Mekong Subregion KW Lancang-Mekong KW China KW Greater Mekong Subregion KW cooperation KW hydropolitics KW ASEAN KW Southeast Asia JO Ojkumena. Regional Researches AU Vinogradov, I.S. PY 2025 IS 19 PB Vladivostok State University