Claus Scheiderer. Non-existence of degree bounds for weighted sums of squares representations. J. Complexity, 21(6):823-844, 2005. [doi]
@article{Scheiderer05,
title = {Non-existence of degree bounds for weighted sums of squares representations},
author = {Claus Scheiderer},
year = {2005},
doi = {10.1016/j.jco.2005.04.001},
url = {http://dx.doi.org/10.1016/j.jco.2005.04.001},
researchr = {https://researchr.org/publication/Scheiderer05},
cites = {0},
citedby = {0},
journal = {J. Complexity},
volume = {21},
number = {6},
pages = {823-844},
}