@article{ZNSL_1971_20_a0,
     author = {Yu. V. Matiyasevich and A. O. Slisenko},
     title = {Editors' preface},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {7},
     publisher = {mathdoc},
     volume = {20},
     year = {1971},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1971_20_a0/}
}