@ARTICLE{ZKT03ijrnc,
  author = {Zhang, J. and Knospe, C. and Tsiotras, P.},
  title = {New Results for the Analysis of Linear Systems with Time-Invariant
	Delays},
  journal = {International Journal of Robust and Nonlinear Control},
  year = {2003},
  volume = {13},
  pages = {1149--1175},
  number = {12}
}