@article{IVM_2021_12_a3,
     author = {N. Kh. Kasymov and R. N. Dadazhanov and S. K. Djavliev},
     title = {Structures of degrees of negative representations of linear orders},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {31--55},
     publisher = {mathdoc},
     number = {12},
     year = {2021},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_2021_12_a3/}
}