@article{ZNSL_1972_32_a2,
     author = {Yu. L. Ershov},
     title = {On a~relation between sheaf-spaces and numerated sets with $C_2^*$-property},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {18--20},
     publisher = {mathdoc},
     volume = {32},
     year = {1972},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1972_32_a2/}
}