@article{VMUMM_2009_3_a9,
     author = {O. N. Bogdanov},
     title = {Refinement of trajectory parameters for {GPS} and {GLONASS} navigation satellites using {IGS} position data},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {53--56},
     publisher = {mathdoc},
     number = {3},
     year = {2009},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_2009_3_a9/}
}