Bob Coecke, Éric Oliver Paquette. POVMs and Naimark s Theorem Without Sums. Electronic Notes in Theoretical Computer Science, 210:15-31, 2008. [doi]
@article{CoeckeP08,
title = {POVMs and Naimark s Theorem Without Sums},
author = {Bob Coecke and Éric Oliver Paquette},
year = {2008},
doi = {10.1016/j.entcs.2008.04.015},
url = {http://dx.doi.org/10.1016/j.entcs.2008.04.015},
researchr = {https://researchr.org/publication/CoeckeP08},
cites = {0},
citedby = {0},
journal = {Electronic Notes in Theoretical Computer Science},
volume = {210},
pages = {15-31},
}