@InProceedings{bloch92geometry,
  author = 	 {Anthony M. Bloch and Roger W. Brockett and Tudor S. Ratiu},
  title = 	 {On the Geometry of Saddle Point Algorithms},
  booktitle = 	 {Proc. 31st IEEE Conf. Dec. and Control, Tuscon},
  pages = 	 {1482--1487},
  year = 	 {1992},
  address = 	 {Tuscon, AZ},
  month = 	 {Dec.}
}