@article{IVM_1995_7_a0,
     author = {E. Yu. Veremeenko and P. Ya. Grushko},
     title = {On some geometric objects in a seven-dimensional space with fundamental group $G_2$},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {3--11},
     publisher = {mathdoc},
     number = {7},
     year = {1995},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1995_7_a0/}
}