@article{TRSPY_1973_129_a2,
     author = {A. O. Slisenko},
     title = {Identification of the symmetry predicate by means of multihead {Turing} machines with input},
     journal = {Informatics and Automation},
     pages = {30--202},
     publisher = {mathdoc},
     volume = {129},
     year = {1973},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_1973_129_a2/}
}