@article{linearstatespacemodelwithtimevarying,
  title = {Linear State-Space Model with Time-Varying Dynamics},
  author = {Jaakko Luttinen and Tapani Raiko and Alexander Ilin},
  year = {2014},
  eprint = {1410.0555},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1410.0555v2},
}