@misc{TRSPY_1975_127_a0,
     title = {Preface},
     journal = {Informatics and Automation},
     pages = {3--4},
     publisher = {mathdoc},
     volume = {127},
     year = {1975},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_1975_127_a0/}
}