@article{UZKU_2011_153_1_a0,
     author = {A. D. Akchurin and K. M. Yusupov},
     title = {Frequency properties of the quasiperiodic variations of midlatitude {Es} layer traces amplitude},
     journal = {U\v{c}\"enye zapiski Kazanskogo universiteta. Seri\^a Fiziko-matemati\v{c}eskie nauki},
     pages = {7--16},
     publisher = {mathdoc},
     volume = {153},
     number = {1},
     year = {2011},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/UZKU_2011_153_1_a0/}
}