@article{MZM_1975_17_1_a2,
     author = {N. S. Gusel'nikov},
     title = {Extension of {quasi-Lipschitz} set functions},
     journal = {Matemati\v{c}eskie zametki},
     pages = {21--31},
     publisher = {mathdoc},
     volume = {17},
     number = {1},
     year = {1975},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1975_17_1_a2/}
}