https://www.visionofhumanity.org/wp-content/uploads/2022/03/GTI-2022-web.pdf#page=75
https://rusi.org/commentary/russias-reach-exceeds-its-grasp-over-karabakh-conflict?utm_source=RUSI+Newsletter&utm_campaign=f8c06368b6-EMAIL_CAMPAIGN_2020_09_10_09_43_COPY_01&utm_medium=email&utm_term=0_0c9bbb5ef0-f8c06368b6-47711229
http://hmics.org/sites/default/files/publications/HMICS20170621PUB.pdf
http://www.kas.de/wf/doc/kas_450-2190-2-30.pdf?170424105349