@article{VSPUI_2023_19_2_a4,
     author = {A. T. Mustafin and A. K. Kantarbayeva},
     title = {Clearing function in the context of the invariant manifold method},
     journal = {Vestnik Sankt-Peterburgskogo universiteta. Prikladna\^a matematika, informatika, processy upravleni\^a},
     pages = {185--198},
     publisher = {mathdoc},
     volume = {19},
     number = {2},
     year = {2023},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VSPUI_2023_19_2_a4/}
}