Title: Chintcha posu ŭi 4-tae kang iyagi
Subjects: Water resources development, River engineering, Waterways, Politics and government, Ressources en eau, Exploitation, Technologie fluviale, Aspect de l'environnement, Voies navigables, Politique et gouvernement, Environmental aspects
Places: Korea (South), Corée du Sud
Time periods: 2002-