Ensemble PDP-8: eight principles for distributed portals. - Edward A. Fox; Yinlin Chen; Monika Akbar; Clifford A. Shaffer; Stephen H. Edwards; Peter Brusilovsky; Daniel D. Garcia; Lois M. L. Delcambre; Felicia Decker; David W. Archer; Richard Furuta; Frank M. Shipman III; et al. (JCDL, 2010)