Arnold Filtser, Robert Krauthgamer. Sparsification of Two-Variable Valued Constraint Satisfaction Problems. SIAM J. Discrete Math., 31(2):1263-1276, 2017. [doi]
@article{FiltserK17,
title = {Sparsification of Two-Variable Valued Constraint Satisfaction Problems},
author = {Arnold Filtser and Robert Krauthgamer},
year = {2017},
doi = {10.1137/15M1046186},
url = {https://doi.org/10.1137/15M1046186},
researchr = {https://researchr.org/publication/FiltserK17},
cites = {0},
citedby = {0},
journal = {SIAM J. Discrete Math.},
volume = {31},
number = {2},
pages = {1263-1276},
}