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APA Citation
Wang, K., Chen, L., Shen, Y., Sun, Y., & Zhao, L. (2021). constructing 2 × 2 × 4 and 4 × 4 unextendible product bases and positive-partial-transpose entangled states. Linear & multilinear algebra, 69(1), 131–146. http://access.bl.uk/ark:/81055/vdc_100122687674.0x000001