@article{SIGMA_2007_3_a95,
     author = {Amitava Choudhuri and B. Talukdar and U. Das},
     title = {Lagrangian {Approach} to {Dispersionless} {KdV} {Hierarchy}},
     journal = {Symmetry, integrability and geometry: methods and applications},
     year = {2007},
     volume = {3},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SIGMA_2007_3_a95/}
}