@article{TRSPY_1999_226_a4,
     author = {M. Boiti and F. Pempinelli and A. K. Pogrebkov and B. Prinari},
     title = {B\"acklund and {Darboux} {Transformations} for the {Nonstationary} {Schr\"odinger} {Equation}},
     journal = {Informatics and Automation},
     pages = {49--71},
     publisher = {mathdoc},
     volume = {226},
     year = {1999},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_1999_226_a4/}
}