@Book{Lommel1886,
author  = "Lommel, Eugen von",
title   = "Die Beugungserscheinungen einer kreisrunden Oeffnung und eines kreisrunden Schirmchens",
year    = "1886",
address = "München",
series  = "Abhandlungen",
volume  = "Bd. 15, Abth. 2 = [4]",
url     = "https://publikationen.badw.de/en/003083014",
}