@article{FPM_2024_25_1_a1,
     author = {E. A. Blagoveshchenskaya and O. V. Markova},
     title = {Matrix structures in the form of finite direct sums and chains},
     journal = {Fundamentalʹna\^a i prikladna\^a matematika},
     pages = {31--51},
     publisher = {mathdoc},
     volume = {25},
     number = {1},
     year = {2024},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FPM_2024_25_1_a1/}
}