@article{ZNSL_1989_172_a3,
     author = {S. V. Kerov},
     title = {Combinatorial examples in the theory of $AF$-algebras},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {55--67},
     publisher = {mathdoc},
     volume = {172},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1989_172_a3/}
}