1M.Meola and S.Stonmout. Real-Time Reference Service for the Remote User: From the telephone and Electronic Mail to Internet Chat, Instant Messaging and Collaorative Software Reference Librarians. N. 67/68, 1999, 29-35.
2L. Eichler and Halperin LivePerson: Keep Reference Alive and Clicking, Econtent June 2000 (http://www.ecmag. net)
3Gary Kliein. "Re: Wyh do not peole use E-mail reference?"Personal E-mail. 28 Jan 1999.
4http://www. harbin. gov. cn
5http://www. cnnic. net. cn
6英国的Ask A Librarian网站．http://www．ask—a—librarian．org．uk/
