@article{DA_2021_28_2_a2,
     author = {O. A. Kutnenko and A. V. Plyasunov},
     title = {NP-hardness of~some data cleaning problem},
     journal = {Diskretnyj analiz i issledovanie operacij},
     pages = {60--73},
     year = {2021},
     volume = {28},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DA_2021_28_2_a2/}
}