@article{MZM_1995_58_1_a4,
     author = {N. M. Dobrovol'skii},
     title = {Means over orbits of multidimensional lattices},
     journal = {Matemati\v{c}eskie zametki},
     pages = {48--66},
     publisher = {mathdoc},
     volume = {58},
     number = {1},
     year = {1995},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1995_58_1_a4/}
}