Google Scholar allows you to search for scholarly literature across many disciplines and sources, and orders articles by the number of citations, which is one measure of a paper's impact. Several papers authored by CS faculty are highly cited. Here is a sample:

Google Scholar Citation Numbers

• 1155    "The Well-Founded Semantics for General Logic  Programs" by AN Gelder, KA Ross, JS Schlipf
• 447      "Mean shift, mode seeking, and clustering" by Y Cheng
  
• 438      "Biclustering of expression data" by Y Cheng, GM Church
  
• 151      "Group Action Graphs and Parallel Architectures" by F Annexstein, M Baumslag, AL Rosenberg
  
• 150      "Probabilistic analysis of the Davis-Putnam procedure for solving the satisfiability problem " by J Franco, M Paull
• 132      "Probabilistic analysis of a generalization of the unit-clause literal selection heuristics for the k satisfiability problem" by MT Chao, J Franco
• 101      "Scalability Issues in Large Peer-to-Peer Networks-A Case Study of Gnutella" by MA Jovanovic, FS Annexstein, KA Berman