@article{MZM_2010_87_6_a1,
     author = {V. L. Vereshchagin},
     title = {Single-Phase {Averaging} for the {Ablowitz--Ladik} {Chain}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {814--824},
     publisher = {mathdoc},
     volume = {87},
     number = {6},
     year = {2010},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2010_87_6_a1/}
}