@article{CTB:99,
   author    = {Y. S. Chou and A. L. Tits and V. Balakrishnan},
   title     = {Stability Multipliers and $\mu$ Upper Bounds: 
                Connections and Implications for Numerical Verification of 
                Frequency Domain Conditions},    
  journal =	 {IEEE Trans.\ Aut.\ Control},
   year      = 1999,
   month     = may,
   volume    = {AC-44},
   number    = 5,
   pages     = {906-913}
}