@Book{Ebert1901,
author  = "Ebert, Hermann",
title   = "Messungen der elektrischen Zerstreuung im Freiballon",
year    = "1901",
address = "München",
series  = "Sitzungsberichte",
volume  = "1900,21",
url     = "https://publikationen.badw.de/de/003384813",
}