by Chu, Moody T.
Published in Linear algebra and its applications (15.01.2016)

by Bakonyi, Mihály, Woerdeman, Hugo J
Year of Publication 2011

by Alshehri, Nujood M., Lykova, Zinaida A.
Published in The Journal of geometric analysis (01.02.2023)

by Alsalhi, Omar M.O., Lykova, Zinaida A.
Published in Journal of mathematical analysis and applications (01.02.2022)

by Alshehri, Nujood M, Lykova, Zinaida A
Year of Publication 15.05.2022

by Alshehri, Nujood M, Lykova, Zinaida A
Published in arXiv.org (26.11.2022)