@InProceedings{Herlihy91b,
  author = 	 {M.P. Herlihy},
  title = 	 {Impossibility results for asynchronous PRAM},
  booktitle = 	 {Proceedings of the 2nd Annual Symposium on Parallel
Algorithms and Architectures},
  year =	 1991,
  month =	 jul
}