@article{ZNSL_2024_534_a2,
     author = {L. Yu. Kolotilina},
     title = {SSDD matrices and relations with other subclasses of nonsingular $\mathcal H$-matrices},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {57--88},
     publisher = {mathdoc},
     volume = {534},
     year = {2024},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2024_534_a2/}
}