@article{VMUMM_2011_3_a12,
     author = {F. Z. Rahmonov},
     title = {Estimate of quadratic trigonometric sums with prime numbers},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {56--60},
     publisher = {mathdoc},
     number = {3},
     year = {2011},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_2011_3_a12/}
}