1. Bonn, Maria. RLG DigiNews [October 15, 2001]
2. Ockerbloom, John Mark. RLG DigiNews [February 15, 2001]
3. Webb, Colin~Kenney, Anne R~Rieger, Oya Y. RLG DigiNews [February 15, 2001]
4. Chapman, Stephen~Comstock, William. RLG DigiNews [December 15, 2000]