@article{ISU_2020_20_1_a3,
     author = {V. A. Molchanov and R. A. Farakhutdinov},
     title = {On definability of universal graphic automata by their input symbol semigroups},
     journal = {Izvestiya of Saratov University. Mathematics. Mechanics. Informatics},
     pages = {42--50},
     publisher = {mathdoc},
     volume = {20},
     number = {1},
     year = {2020},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ISU_2020_20_1_a3/}
}