@unpublished{eprints1226,
       booktitle = {European Control Conference 2007},
           month = {July},
           title = {Gradient tracking based second order sliding mode control
of a wheeled vehicle},
            year = {2007},
          author = {Antonella Ferrara and Matteo Rubagotti},
             url = {http://eprints.imtlucca.it/1226/}
}