J. Kim, Poland, Czech Republic, Slovakia, and Hungary: Recent Developments, CRS 1996, Federation of American Scientists on-line versionΑρχειοθετήθηκε 2015-06-14 στο Wayback Machine.
J. Kim, Poland, Czech Republic, Slovakia, and Hungary: Recent Developments, CRS 1996, Federation of American Scientists on-line versionΑρχειοθετήθηκε 2015-06-14 στο Wayback Machine.