@article{IVM_1962_2_a10,
     author = {E. S. Lyapin},
     title = {Some endomorphisms of an ordered set},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {87--94},
     publisher = {mathdoc},
     number = {2},
     year = {1962},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1962_2_a10/}
}