@article{VYURM_2016_8_1_a0,
     author = {T. A. Makarovskikh},
     title = {On the number of $OE$-trails for a fixed transition system},
     journal = {Vestnik \^U\v{z}no-Uralʹskogo gosudarstvennogo universiteta. Seri\^a, Matematika, mehanika, fizika},
     pages = {5--12},
     publisher = {mathdoc},
     volume = {8},
     number = {1},
     year = {2016},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VYURM_2016_8_1_a0/}
}