@article{SIGMA_2005_1_a19,
     author = {Andrey M. Pupasov and Boris F. Samsonov},
     title = {Exact {Propagators} for {Soliton} {Potentials}},
     journal = {Symmetry, integrability and geometry: methods and applications},
     year = {2005},
     volume = {1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SIGMA_2005_1_a19/}
}