@article{IIGUM_2023_45_a2,
     author = {Boris I. Ananyev and Polina A. Yurovskikh},
     title = {Guaranteed estimation problem for multi-step systems},
     journal = {The Bulletin of Irkutsk State University. Series Mathematics},
     pages = {37--53},
     publisher = {mathdoc},
     volume = {45},
     year = {2023},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IIGUM_2023_45_a2/}
}