@article{BergemannGottwaldReich2009,
  author    = {Kay Bergemann and Georg Gottwald and Sebastian Reich},
  title     = {Ensemble propagation and continuous matrix factorization algorithms},
  doi       = {10.1002/qj.457},
  url       = {http://onlinelibrary.wiley.com/journal/10.1002/\%28ISSN\%291477-870X},
  year      = {2009},
}