@Book{Sommer1932,
author  = "Sommer, Ferdinand",
title   = "Die Aẖẖijavā-Urkunden",
year    = "1932",
address = "München",
series  = "Abhandlungen",
volume  = "N.F., 6",
url     = "https://publikationen.badw.de/en/006968284",
}