@misc{148751,
  author = {Martin Berger and J Coursey and M Zucker},
  title = {ESTAR, PSTAR, and ASTAR: Computer Programs for Calculating Stopping-Power and Range Tables for Electrons, Protons, and Helium Ions (version 1.21)},
  year = {1999},
  month = {1999-01-01},
  publisher = {http://physics.nist.gov/Star},
  language = {en},
}