@article{MO_2024_1_a3,
     author = {A. V. Neklyudov},
     title = {Some qualitative methods in the course of ordinary differential equations},
     journal = {Matemati\v{c}eskoe obrazovanie},
     pages = {22--29},
     year = {2024},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MO_2024_1_a3/}
}