@Book{Lommel1894,
author  = "Lommel, Eugen von",
title   = "Aequipotential- und Magnetkraftlinien",
year    = "1894",
address = "München",
series  = "Sitzungsberichte",
volume  = "1893,3",
url     = "https://publikationen.badw.de/de/003899393",
}