@article{MZM_1981_29_1_a8,
     author = {A. F. Sidorenko},
     title = {Number of admissible linear orderings of a partially ordered set as a function of its incomparability graph},
     journal = {Matemati\v{c}eskie zametki},
     pages = {75--82},
     year = {1981},
     volume = {29},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1981_29_1_a8/}
}