@article{TM_1992_193_a9,
     author = {A. N. Varchenko},
     title = {Combinatorics of a~partial fraction decomposition},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {49--52},
     year = {1992},
     volume = {193},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TM_1992_193_a9/}
}