@article{SJVM_2022_25_4_a3,
     author = {M. I. Ivanov and I. A. Kremer and Yu. M. Laevsky},
     title = {Solving the pure {Neumann} problem by a mixed finite element method},
     journal = {Sibirskij \v{z}urnal vy\v{c}islitelʹnoj matematiki},
     pages = {385--401},
     publisher = {mathdoc},
     volume = {25},
     number = {4},
     year = {2022},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/SJVM_2022_25_4_a3/}
}