@article{JSFU_2009_2_3_a5,
     author = {Boris S. Dobronets},
     title = {Approximation of the {Sets} of {Solutions} by {Parametric} {Sets}},
     journal = {\v{Z}urnal Sibirskogo federalʹnogo universiteta. Matematika i fizika},
     pages = {305--311},
     publisher = {mathdoc},
     volume = {2},
     number = {3},
     year = {2009},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/JSFU_2009_2_3_a5/}
}