@article{ND_2022_18_5_a13,
     author = {P. Astafyeva and O. Kiselev},
     title = {Formal {Asymptotics} of {Parametric} {Subresonance}},
     journal = {Russian journal of nonlinear dynamics},
     pages = {927--937},
     publisher = {mathdoc},
     volume = {18},
     number = {5},
     year = {2022},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ND_2022_18_5_a13/}
}