@Book{Sohncke1889,
author  = "Sohncke, Leonhard",
title   = "Die Entstehung des Stroms in der galvanischen Kette",
year    = "1889",
address = "München",
series  = "Sitzungsberichte",
volume  = "1888,18",
url     = "https://publikationen.badw.de/en/003391634",
}