@article{PFMT_2017_3_a12,
     author = {R. F. Shamoyan and S. P. Maksakov},
     title = {On some new estimates for a gradient of a function in product domains and related results},
     journal = {Problemy fiziki, matematiki i tehniki},
     pages = {69--74},
     publisher = {mathdoc},
     number = {3},
     year = {2017},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PFMT_2017_3_a12/}
}