@article{FAA_1990_24_4_a4,
     author = {S. P. Novikov},
     title = {Quantization of finite-gap potentials and nonlinear quasiclassical approximation in nonperturbative string theory},
     journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a},
     pages = {43--53},
     publisher = {mathdoc},
     volume = {24},
     number = {4},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FAA_1990_24_4_a4/}
}