@article{ZNSL_1977_71_a4,
     author = {Z. I. Borevich},
     title = {On the enumeration of finite topologies},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {47--65},
     publisher = {mathdoc},
     volume = {71},
     year = {1977},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1977_71_a4/}
}