@Book{Lommel1886,
author  = "Lommel, Eugen von",
title   = "Die Beugungserscheinungen geradlinig begrenzter Schirme",
year    = "1886",
address = "München",
series  = "Abhandlungen",
volume  = "Bd. 15, Abth. 3 = [9]",
url     = "https://publikationen.badw.de/de/003083022",
}