@article{IM2_2022_86_1_a0,
     author = {F. G. Avkhadiev},
     title = {Embedding theorems related to torsional rigidity and principal frequency},
     journal = {Izvestiya. Mathematics },
     pages = {1--31},
     publisher = {mathdoc},
     volume = {86},
     number = {1},
     year = {2022},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_2022_86_1_a0/}
}