Sunil Arya Gautam Das David M. Mount Jeffrey S. Salowe Michiel H. M. Smid Euclidean spanners: short, thin, and lanky. 489-498 1995 conf/stoc/STOC27 STOC http://doi.acm.org/10.1145/225058.225191 db/conf/stoc/stoc1995.html#AryaDMSS95