@article{JCEM_2022_9_1_a4,
     author = {A. L. Ushakov},
     title = {Analysis of the problem for the biharmonic equation},
     journal = {Journal of computational and engineering mathematics},
     pages = {43--58},
     publisher = {mathdoc},
     volume = {9},
     number = {1},
     year = {2022},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/JCEM_2022_9_1_a4/}
}