@article{FPM_2024_25_2_a8,
     author = {Yu. Yu. Kochetkov},
     title = {A dynamical system in the space of convex quadrangles},
     journal = {Fundamentalʹna\^a i prikladna\^a matematika},
     pages = {183--188},
     year = {2024},
     volume = {25},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FPM_2024_25_2_a8/}
}