@article{DE_1991_27_12_a11,
     author = {M. E. Lerner},
     title = {Qualitative properties of the {Riemann} function},
     journal = {Differencialʹnye uravneni\^a},
     pages = {2106--2120},
     year = {1991},
     volume = {27},
     number = {12},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1991_27_12_a11/}
}