@Book{Emden1918,
author  = "Emden, Robert",
title   = "Über elektrische Wellen in geschichteten Medien",
year    = "1918",
address = "München",
series  = "Sitzungsberichte",
volume  = "1918,17",
url     = "https://publikationen.badw.de/de/003399188",
}