@article{TM_1958_51_a6,
     author = {B. A. Trakhtenbrot},
     title = {The theory of non-repeating contact schemes},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {226--269},
     publisher = {mathdoc},
     volume = {51},
     year = {1958},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TM_1958_51_a6/}
}