@article{DM_1993_5_1_a3,
     author = {A. A. Zolotykh},
     title = {Traversing labyrinths with holes that are restricted in fixed directions},
     journal = {Diskretnaya Matematika},
     pages = {59--69},
     year = {1993},
     volume = {5},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DM_1993_5_1_a3/}
}