@article{IIMI_2022_60_a2,
     author = {O. A. Kuvshinov},
     title = {About the geometry of the {Cassini} oval, its non-convexity degree and $\varepsilon$-offset layer},
     journal = {Izvestiya Instituta Matematiki i Informatiki Udmurtskogo Gosudarstvennogo Universiteta},
     pages = {34--57},
     year = {2022},
     volume = {60},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IIMI_2022_60_a2/}
}