http://bee.net.vn/channel/1987/201010/Nhung-nguoi-khach-cuoi-cung-ngu-duoi-troi-Ha-Noi-1772212/
http://vietnamnet.vn/tinnhanh/201010/Pho-phuong-Ha-Noi-xac-xo-sau-dai-le-940172/
-->http://phapluattp.vn/20101009111836950p0c1015/de-xuat-lap-trung-tam-nghien-cuu-ve-ha-noi.htm