@article{MZM_1975_18_1_a2,
     author = {Sh. A. Ismatullaev},
     title = {A~two-dimensional additive problem with an increasing number of terms},
     journal = {Matemati\v{c}eskie zametki},
     pages = {19--25},
     year = {1975},
     volume = {18},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1975_18_1_a2/}
}