From 'Not Us' To 'Why Hide It?': How Russia Denied Its Crimea Invasion, Then Admitted It
Annexation of Crimea by the Russian Federation - Wikipedia
Ukraine - The crisis in Crimea and eastern Ukraine | Britannica
Republic of Crimea - Wikipedia
Russia marks 5 years since Crimea annexation | News | DW | 18.03.2019
Annexation of Crimea by the Russian Federation - Wikipedia
Ukraine: Putin signs Crimea annexation - BBC News
Crimea Celebrates Its First Anniversary Of Annexation By Russia | Time
Putin confirms Crimea annexation as Ukraine soldier becomes first casualty | Russia | The Guardian
Putin reveals secrets of Russia's Crimea takeover plot - BBC News
The economic cost of annexing Crimea | VoxUkraine
Ukraine crisis: Annexation of Crimea by Russia 'sends chilling message across the continent of Europe' as Russian troops commit 'war crime' firing on Ukrainian base and killing soldier | The Independent
Why Putin Took Crimea from the Ukraine | Foreign Affairs