@article{MZM_2003_74_4_a10,
     author = {D. I. Saveliev},
     title = {On {Isomorphisms} of {Relations} {Embedded} into {Each} {Other}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {573--589},
     publisher = {mathdoc},
     volume = {74},
     number = {4},
     year = {2003},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2003_74_4_a10/}
}