Citation Hunt

The Wikipedia snippet below is not backed by a reliable source. Can you find one?

Click I got this! to go to Wikipedia and fix the snippet, or Next! to see another one. Good luck!

In page Refugee crisis:

This text has been unreferenced on Wikipedia for a very long time. If you can't find a source, be bold and remove it!

"

This major compulsory population exchange, or agreed mutual expulsion, was based not on language or ethnicity, but upon religious identity, and involved nearly all the Orthodox Christian citizens of Turkey, including its native Turkish-speaking Orthodox citizens, and most of the Muslim citizens of Greece, including its native Greek-speaking Muslim citizens.[citation needed]