Jentoft, Morten (28. februar 2008). «Massakre-film sår splid». NRK. Besøkt 11. mars 2022. «Andrzej Wajda Wajdas nye film "Katyn" handler om det sovjetiske hemmelege politiet NKVDs drap på titusenvis av polske offiserer og intellektuelle i 1940.»
Schwirtz, Michael (7. april 2010). «Putin Observes Anniversary of Katyn Killings». The New York Times (på engelsk). ISSN0362-4331. Besøkt 3. mars 2019. «Mr. Putin cast the executions as one tragedy out of many wrought by what he called the Soviet Union’s “totalitarian regime.” “We bow our heads to those who bravely met death here,” Mr. Putin said at a site in the Katyn forest close to the Russian city of Smolensk»
spiegel.de
Bidder, Benjamin (8. april 2010). «Remembering the Katyn Massacre: Putin Gesture Heralds New Era in Russian-Polish Relations». Spiegel Online. Besøkt 3. mars 2019. «The execution order, drawn up by intelligence chief Lavrenty Beria, was signed by the Soviet dictator Josef Stalin. The Soviet secret police, the NKVD, was in charge of the massacres. Putin's early career was with the KGB, the successor to the NKVD.»
telegraph.co.uk
«Russia publishes previously secret files on 1940 Katyn massacre». The Telegraph (på engelsk). 28. april 2010. ISSN0307-1235. Besøkt 3. mars 2019. «Polish president Lech Kaczynski was heading to Katyn for a ceremony marking the 70th anniversary of the massacre earlier this month when his plane crashed, killing all 96 people aboard, including many top Polish officials.»
«Russia publishes previously secret files on 1940 Katyn massacre». The Telegraph (på engelsk). 28. april 2010. ISSN0307-1235. Besøkt 3. mars 2019. «Polish president Lech Kaczynski was heading to Katyn for a ceremony marking the 70th anniversary of the massacre earlier this month when his plane crashed, killing all 96 people aboard, including many top Polish officials.»
Schwirtz, Michael (7. april 2010). «Putin Observes Anniversary of Katyn Killings». The New York Times (på engelsk). ISSN0362-4331. Besøkt 3. mars 2019. «Mr. Putin cast the executions as one tragedy out of many wrought by what he called the Soviet Union’s “totalitarian regime.” “We bow our heads to those who bravely met death here,” Mr. Putin said at a site in the Katyn forest close to the Russian city of Smolensk»