@article{DM_2012_24_2_a8,
     author = {I. P. Mikhailov},
     title = {On multiple trigonometric sums of mixed type},
     journal = {Diskretnaya Matematika},
     pages = {100--103},
     publisher = {mathdoc},
     volume = {24},
     number = {2},
     year = {2012},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DM_2012_24_2_a8/}
}