@article{VMUMM_2020_5_a9,
     author = {A. L. Semenov},
     title = {Mappings preserving relations definable by linear order},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {62--65},
     publisher = {mathdoc},
     number = {5},
     year = {2020},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_2020_5_a9/}
}