@article{FAA_2003_37_1_a2,
     author = {S. M. Natanzon},
     title = {Witten {Solution} for the {Gelfand--Dikii} {Hierarchy}},
     journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a},
     pages = {25--37},
     publisher = {mathdoc},
     volume = {37},
     number = {1},
     year = {2003},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FAA_2003_37_1_a2/}
}