@Book{Lindemann1923,
author  = "Lindemann, Ferdinand",
title   = "Die Flächen mit gegebener Form des Linienelementes",
year    = "1923",
address = "München",
series  = "Sitzungsberichte",
volume  = "1923,11",
url     = "https://publikationen.badw.de/en/003399317",
}