@article{MZM_1998_63_1_a7,
     author = {A. S. Leonov},
     title = {On the total variation for functions of several variables and a multidimensional analog of {Helly's} selection principle},
     journal = {Matemati\v{c}eskie zametki},
     pages = {69--80},
     publisher = {mathdoc},
     volume = {63},
     number = {1},
     year = {1998},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1998_63_1_a7/}
}