@article{JCEM_2017_4_3_a3,
     author = {D. E. Shafranov and N. V. Adukova},
     title = {Solvability of the {Showalter{\textendash}Sidorov} problem for {Sobolev} type equations with operators in the form of first-order polynomials from the {Laplace{\textendash}Beltrami} operator on differential forms},
     journal = {Journal of computational and engineering mathematics},
     pages = {27--34},
     year = {2017},
     volume = {4},
     number = {3},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/JCEM_2017_4_3_a3/}
}