@article{SIGMA_2017_13_a9,
     author = {David Hobby and Ekaterina Shemyakova},
     title = {Classification of {Multidimensional} {Darboux} {Transformations:} {First~Order} and {Continued} {Type}},
     journal = {Symmetry, integrability and geometry: methods and applications},
     year = {2017},
     volume = {13},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SIGMA_2017_13_a9/}
}