@inproceedings{Liu&2000,
  author = "Yanhong A. Liu and Scott D. Stoller",
  title = "From recursion to iteration: what are the optimizations?",
  booktitle = "Proc.\ 2000 ACM SIGPLAN Symposium on Partial 
              Evaluation and Semantics-Based Program Manipulation (PEPM)",
  year = 2000,
  month = jan,
  address = "Boston",
  note="Published in {\it ACM SIGPLAN Notices}, February 2000"
  }