@article{KUKZ_1987_23_23_a18,
     author = {I. R. Nezhmetdinov},
     title = {One-sided moduli of continuity and sharp estimates for harmonic functions in an annulus},
     journal = {Trudy seminara po kraevym zada\v{c}am},
     pages = {169--174},
     publisher = {mathdoc},
     volume = {23},
     number = {23},
     year = {1987},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/KUKZ_1987_23_23_a18/}
}