@article{GMJ_1995__2_3_47367,
     author = {Chrastinov\'a, Veronika},
     title = {On the {Darboux} transformation. {I.}},
     journal = {Georgian mathematical journal},
     pages = {237--240},
     year = {1995},
     volume = {2},
     number = {3},
     zbl = {0834.34028},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/GMJ_1995__2_3_47367/}
}