@book{44576,
  title = {The Katyn Forest Massacre: Hearings Before the Select Committee to Conduct an Investigation of the Facts, Evidence and Circumstances of the Katyn Forest Massacre},
  year = {1952},
  publisher = {U.S. Government Printing Office},
  address = {Washington},
  url = {https://books.google.at/books?id=NVlFAQAAMAAJ},
  language = {eng},
}