The following publications are possibly variants of this publication:
- Placement Algorithms for Hierarchical Cooperative CachingMadhukar R. Korupolu, C. Greg Plaxton, Rajmohan Rajaraman. soda 1999: 586-595 [doi]
- Online hierarchical cooperative cachingXiaozhou Li, C. Greg Plaxton, Mitul Tiwari, Arun Venkataramani. spaa 2004: 74-83 [doi]
- Online Hierarchical Cooperative CachingXiaozhou Li, C. Greg Plaxton, Mitul Tiwari, Arun Venkataramani. mst, 39(6):851-874, 2006. [doi]