1.
Davydenko AA. On One Method for the Introduction of Local Coordinates in a Neighborhood of an Invariant Toroidal Set. Ukr. Mat. Zhurn. [Internet]. 2002Oct.25 [cited 2024Jul.27];54(10):1336-47. Available from: https://umj.imath.kiev.ua/index.php/umj/article/view/4172