@article{MZM_1979_26_5_a10,
     author = {M. Kh. Khafizov},
     title = {Systems of sets with set functions},
     journal = {Matemati\v{c}eskie zametki},
     pages = {757--768},
     publisher = {mathdoc},
     volume = {26},
     number = {5},
     year = {1979},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1979_26_5_a10/}
}