@article{TMF_1975_24_1_a4,
     author = {Yu. M. Pis'mak},
     title = {Combinatorial analysis of the overlapping problem for vertices with more than four legs},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {34--48},
     publisher = {mathdoc},
     volume = {24},
     number = {1},
     year = {1975},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1975_24_1_a4/}
}