Erik Jan van Leeuwen, Jan van Leeuwen. Structure of Polynomial-Time Approximation. Theory Comput. Syst., 50(4):641-674, 2012. [doi]
@article{LeeuwenL12,
title = {Structure of Polynomial-Time Approximation},
author = {Erik Jan van Leeuwen and Jan van Leeuwen},
year = {2012},
doi = {10.1007/s00224-011-9366-z},
url = {http://dx.doi.org/10.1007/s00224-011-9366-z},
researchr = {https://researchr.org/publication/LeeuwenL12},
cites = {0},
citedby = {0},
journal = {Theory Comput. Syst.},
volume = {50},
number = {4},
pages = {641-674},
}