@article{v005a006,
 author = {Newman, Ilan and Rabinovich, Yuri},
 title = {Hard Metrics from Cayley Graphs of Abelian Groups},
 year = {2009},
 pages = {125--134},
 doi = {10.4086/toc.2009.v005a006},
 publisher = {Theory of Computing},
 journal = {Theory of Computing},
 volume = {5},
 number = {6},
 URL = {https://theoryofcomputing.org/articles/v005a006},
}