@article{MZM_1989_45_5_a12,
     author = {G. G. Gevorkyan},
     title = {Trigonometric integrals that are integrable by the {Riemann} method},
     journal = {Matemati\v{c}eskie zametki},
     pages = {114--117},
     publisher = {mathdoc},
     volume = {45},
     number = {5},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1989_45_5_a12/}
}