@InProceedings{brockett97singular,
  author = 	 {Roger W. Brockett},
  title = 	 {Singular Values and Least Squares Matchin},
  booktitle = 	 {Proc. 36th IEEE Conf. on Dec. and Control},
  pages = 	 {1121--1124},
  year = 	 {1997},
  address = 	 {San Diego, CA}
}