@article{MO_2021_99_3_a6,
     author = {V. N. Novikov},
     title = {On inequalities in a tetrahedron, finished},
     journal = {Matemati\v{c}eskoe obrazovanie},
     pages = {58--69},
     publisher = {mathdoc},
     volume = {99},
     number = {3},
     year = {2021},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MO_2021_99_3_a6/}
}