@incollection {brockett01new,
    AUTHOR = {Brockett, Roger W.},
     TITLE = {New Issues in the Mathematics of Control},
 BOOKTITLE = {Mathematics Unlimited---2001 and Beyond},
    EDITOR = {B. Engquist and W. Schmid},
     PAGES = {189--219},
 PUBLISHER = {Springer},
   ADDRESS = {Berlin},
      YEAR = {2001}
}