Ivanov G. Tight frames and related geometric problems. Canadian Mathematical Bulletin. 2021;64(4):942-963. doi:10.4153/s000843952000096x
LibreCat: https://research-explorer.ista.ac.at/record/10860
DOI: 10.4153/s000843952000096x
WoS: 000730165300021
arXiv: 1804.10055