@article{DM_1995_7_3_a6,
     author = {D. A. Babaev and S. S. Mardanov},
     title = {Sequential and simultaneous aggregation of {Diophantine} equations},
     journal = {Diskretnaya Matematika},
     pages = {69--80},
     publisher = {mathdoc},
     volume = {7},
     number = {3},
     year = {1995},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DM_1995_7_3_a6/}
}