@inproceedings{variationalgaussianprocessdynamical,
  title = {Variational Gaussian Process Dynamical Systems},
  author = {Andreas Damianou and Michalis K. Titsias and Neil D. Lawrence},
  year = {2011},
  booktitle = {NeurIPS 2011 12},
  url = {http://papers.nips.cc/paper/4330-variational-gaussian-process-dynamical-systems},
}