@article{ZNSL_2004_317_a5,
     author = {E. Sh. Gutshabash},
     title = {Darboux transformation for the nonstationary {Schr\"odinger} equation},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {94--104},
     publisher = {mathdoc},
     volume = {317},
     year = {2004},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2004_317_a5/}
}