@article{ZNSL_2022_514_a5,
     author = {L. Yu. Kolotilina},
     title = {On {SDD}$_1$ matrices},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {88--112},
     publisher = {mathdoc},
     volume = {514},
     year = {2022},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2022_514_a5/}
}