@article{ZNSL_1989_176_a4,
     author = {V. P. Orevkov},
     title = {A note on a extension of {Kreisel's} conjecture},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {118--126},
     publisher = {mathdoc},
     volume = {176},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1989_176_a4/}
}