@Article{brockett94evolution,
  author = 	 {Roger W. Brockett and Petros Maragos},
  title = 	 {Evolution Equations for Continuous-Scale Morphological Filtering},
  journal = 	 {IEEE Trans. Signal Processing},
  year = 	 {1994},
  volume = 	 {42},
  number = 	 {12},
  pages = 	 {3377--3386},
  month = 	 {Dec.}
}