@incollection {MR1881498,
    AUTHOR = {Kawski, Matthias},
     TITLE = {Controllability and coordinates of the first kind},
 BOOKTITLE = {Contemporary trends in nonlinear geometric control theory and
              its applications ({M}\'exico {C}ity, 2000)},
     PAGES = {381--403},
 PUBLISHER = {World Sci. Publ., River Edge, NJ},
      YEAR = {2002},
   MRCLASS = {93B05 (93C10)},
  MRNUMBER = {MR1881498 (2002k:93011)},
MRREVIEWER = {David L. Elliott},
}