%0 Journal Article %A G. A. Tolstikhina %A A. M. Shelekhov %T On the structure equations of the three-web defined by the core of a~given left Bol three-web %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 2015 %P 75-84 %N 8 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_2015_8_a6/ %G ru %F IVM_2015_8_a6