@article{ZNSL_2012_402_a0,
     author = {Juhani Karhum\"aki and Yuri Matiyasevich},
     title = {Preface},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {5--8},
     publisher = {mathdoc},
     volume = {402},
     year = {2012},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2012_402_a0/}
}