Berç Rustem. The diagonalizability of quadratic functions and the arbitrariness of shadow prices. Automatica, 27(3):573-578, 1991. [doi]
@article{Rustem91,
title = {The diagonalizability of quadratic functions and the arbitrariness of shadow prices},
author = {Berç Rustem},
year = {1991},
doi = {10.1016/0005-1098(91)90119-M},
url = {http://dx.doi.org/10.1016/0005-1098(91)90119-M},
researchr = {https://researchr.org/publication/Rustem91},
cites = {0},
citedby = {0},
journal = {Automatica},
volume = {27},
number = {3},
pages = {573-578},
}