@Book{Lagally1914,
author  = "Lagally, Max",
title   = "Systeme von Potentialflächen und Stromflächen",
year    = "1914",
address = "München",
series  = "Sitzungsberichte",
volume  = "1914,7",
url     = "https://publikationen.badw.de/en/003395153",
}