@Book{Schirmeier1979,
author  = "Schirmeier, Ursula",
title   = "Produkte harmonischer Räume",
year    = "1979",
address = "München",
series  = "Sitzungsberichte",
volume  = "1978,2",
url     = "https://publikationen.badw.de/en/003384293",
}