@article{2006a,
  author = "A. A. Lazar",
  title = "Time Encoding Machines with Multiplicative Coupling, Feedforward and Feedback",
  year = 2006,
  journal = "IEEE Transactions on Circuits and Systems-II: Express Briefs",
  volume = 53,
  number = 8,
  pages = "672-676",
  month = "Aug",
  keywords = "time encoding, time change, perfect signal recovery, feedforward, feedback."
}