David De Roure Wendy Hall Siegfried Reich Aggelos Pikrakis Gary Hill Mark A. Stairmand An Open Architecture for Supporting Collaboration on the Web. 90-95 1998 conf/wetice/1998 WETICE http://dlib2.computer.org/conferen/wetice/8751/pdf/87510090.pdf? db/conf/wetice/wetice1998.html#DeRoureHRPHS98