@article{IVM_2014_12_a7,
     author = {G. A. Tolstikhina and A. M. Shelekhov},
     title = {On the three-web associated to the core of a~left {Bol} three-web},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {83--88},
     publisher = {mathdoc},
     number = {12},
     year = {2014},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_2014_12_a7/}
}