@article{MZM_1976_19_1_a7,
     author = {C. G. Slobodnik},
     title = {An expanding system of linearly closed sets},
     journal = {Matemati\v{c}eskie zametki},
     pages = {67--84},
     publisher = {mathdoc},
     volume = {19},
     number = {1},
     year = {1976},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1976_19_1_a7/}
}