@article{BGUMI_2023_3_a4,
     author = {V. M. Volkov and E. I. Kachalouskaya},
     title = {An iterative {Chebyshev} spectral solver for two-dimensional elliptic equations with variable coefficients},
     journal = {Journal of the Belarusian State University. Mathematics and Informatics},
     pages = {53--62},
     publisher = {mathdoc},
     volume = {3},
     year = {2023},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/BGUMI_2023_3_a4/}
}