@article{PA_2019_8_3_a15,
     author = {M. S. Sultanakhmedov},
     title = {On the convergence of the least square method in case of non-uniform grids},
     journal = {Problemy analiza},
     pages = {166--186},
     publisher = {mathdoc},
     volume = {8},
     number = {3},
     year = {2019},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PA_2019_8_3_a15/}
}