@article{ISU_2021_21_2_a5,
     author = {I. A. Pankratov},
     title = {Approximation of the orientation equations of the orbital coordinate system by the weighted residuals method},
     journal = {Izvestiya of Saratov University. Mathematics. Mechanics. Informatics},
     pages = {194--201},
     publisher = {mathdoc},
     volume = {21},
     number = {2},
     year = {2021},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ISU_2021_21_2_a5/}
}