Mohammadi, A., Pham, T., &; Wang, Y. (2023). An energy decomposition theorem for matrices and related questions. Canadian Mathematical Bulletin. Cambridge University Press.https://doi.org/10.4153/S000843952300036X 
LibreCat: https://research-explorer.ista.ac.at/record/13128
DOI: 10.4153/S000843952300036X
WoS: 001011963000001
arXiv: 2106.07328

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