@article{SLC_2002-2004_49_a5,
     author = {Bernd Fiedler},
     title = {On the {Symmetry} {Classes} of the {First} {Covariant} {Derivatives} of {Tensor} {Fields}},
     journal = {S\'eminaire lotharingien de combinatoire},
     year = {2002-2004},
     volume = {49},
     url = {http://geodesic.mathdoc.fr/item/SLC_2002-2004_49_a5/}
}