@article{SIGMA_2007_3_a19,
     author = {Henrik Aratyn and Johan van de Leur},
     title = {Clifford {Algebra} {Derivations} of {Tau-Functions} for {Two-Dimensional} {Integrable} {Models} with {Positive} and {Negative} {Flows}},
     journal = {Symmetry, integrability and geometry: methods and applications},
     year = {2007},
     volume = {3},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SIGMA_2007_3_a19/}
}