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 Grumbates:

"

The exact spelling and origin of his name is not fully known. Possible origins include Kurumpat (from Old Turkic *Qurum-pat, "ruling prince";[1][2] Old Turkic pat, "chieftain", either directly borrowed from Iranian pat, "ruler"[3] or evolved from Old Turkic baş, "head, leader"[4]). Qurum (from Old Turkic qurum, "rule, leadership, administration")[3][5][6] in the form of Krum is attested to in the royal Bulgar princes lines as well as in the Greek traditions as a designation of Bulgar Khans.[2][6] It has been suggested that Krumbates could also be composed of Iranian -bat, from Iranian pat, "ruler"; cf. Persian pād, "master".[3][6]