@article{FAA_1990_24_1_a11,
     author = {P. G. Grinevich and A. Yu. Orlov},
     title = {Variations of the complex structure of {Riemann} surfaces by vector fields on a contour and objects of the {KP} theory. {The} {Krichever--Novikov} problem of the action on the {Baker--Akhieser} functions},
     journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a},
     pages = {72--73},
     publisher = {mathdoc},
     volume = {24},
     number = {1},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FAA_1990_24_1_a11/}
}