@Book{Johnsen1917,
author  = "Johnsen, Arrien",
title   = "Kohäsion, Leitvermögen und Kristallstruktur",
year    = "1917",
address = "München",
series  = "Sitzungsberichte",
volume  = "1917,5",
url     = "https://publikationen.badw.de/en/003395557",
}