@article{ZNSL_1975_49_a2,
     author = {Yu. V. Matiyasevich},
     title = {On metamathematical approach to proving theorems of discrete mathematics},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {31--50},
     publisher = {mathdoc},
     volume = {49},
     year = {1975},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1975_49_a2/}
}