@article{139011,
  author = {Martin Berger and Michael Unterweger and J Hutchinson},
  title = {The Influence of Backing and Covering Materials on the 2π-Counting Efficiencies of Beta-particle Sources},
  year = {1996},
  number = {369},
  month = {1996-01-01},
  publisher = {Nuclear Instruments & Methods},
  language = {en},
}