https://www.businessinsider.com/russian-t90-tank-is-struggling-in-combat-in-ukraine-2022-8
https://engineerine.com/t-90-tank/
https://www.ajaishukla.com/2008/07/catchovsky-22-scandal-that-is-t-90.html
https://en.wikipedia.org/wiki/T-90
https://odin.tradoc.army.mil/mediawiki/index.php/T-90A_/T-90S_Russian_Main_Battle_Tank_(MBT)
https://nationalinterest.org/blog/reboot/could-russias-deadly-t-90-armata-do-battle-americas-best-tank-167845
http://www.military-today.com/tanks/m1a2_abrams.htm