@article{v006a002,
 author = {Matthias Englert and Harald R\"{a}cke and Matthias Westermann},
 title = {Reordering Buffers for General Metric Spaces},
 year = {2010},
 pages = {27-46},
 doi = {10.4086/toc.2010.v006a002},
 publisher = {Theory of Computing},
 journal = {Theory of Computing},
 volume = {6},
 number = {1},
 URL = {http://www.theoryofcomputing.org/articles/v006a002},
}