@article{cj99-05,
       author={Joan  Feigenbaum and Sampath Kannan and Moshe Y. Vardi},
       title={The Complexity and Mahesh Viswanathan},
       journal={Chicago Journal of Theoretical Computer Science},
       volume={1999},
       number={5},
       publisher={MIT Press},
       month={August},
       year={1999}
}