https://www.novayagazeta.ru/articles/2016/12/27/71033-proschayte-kollektory-privet-kadastr
http://newtimes.ru/stati/temyi/%C2%ABchekistyi%C2%BB-i-poputchiki.html
https://republic.ru/posts/77872
http://www.kasparov.ru/material.php?id=586127326D18F
All on board, including members of the Red Army Choir, died when the jet plunged into the Black Sea.
http://carnegie.ru/2016/12/26/ru-pub-66558
http://hvylya.net/analytics/geopolitics/stsenarii-razvitiya-situatsii-po-donbassu-v-2017-godu.html
https://politeka.net/392407-shou-putina-ob-ukraine-sirii-i-rossii-vstayushchey-s-kolen/
http://newtimes.ru/stati/xroniki/neboevyie-poteri-nenuzhnoj-vojnyi.html