"Rockfill, center impervious core" . . . "O" . . "93.5" . "1997" . . "1997" . . . ":H\u00E0m Thu\u1EADn \u2013 \u0110a Mi hydroelectric power stations" . . . . . "H\u00E0m Thu\u1EADn \u2013 \u0110a Mi hydroelectric power stations" . "686.0" . . "H\u00E0m Thu\u1EADn \u2013 \u0110a Mi hydroelectric power stations" . . "H\u00E0m Thu\u1EADn \u2013 \u0110a Mi Dams" . "2001" . .