@conference{56841,
  author = {Jun-Feng Song and Samuel Low and Xiaoyu Zheng},
  title = {NIST Microform Calibration System for Rockwell Hardness Standardization},
  year = {2008},
  month = {2008-08-25},
  publisher = {Proceedings of 4th International Symposium on Precision Mechanical Measurements (ISPMM 2008), Hefei, -1},
  language = {en},
}