@article{DA_2015_22_2_a5,
     author = {V. G. Sargsyan},
     title = {Counting sumsets and differences in abelian group},
     journal = {Diskretnyj analiz i issledovanie operacij},
     pages = {73--85},
     publisher = {mathdoc},
     volume = {22},
     number = {2},
     year = {2015},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DA_2015_22_2_a5/}
}