@Book{Volk1924,
author  = "Volk, Otto",
title   = "Zur Voss'schen Arbeit: Kurvennetze und Laplacesche partielle Differentialgleichungen",
year    = "1924",
address = "München",
series  = "Sitzungsberichte",
volume  = "1924,[15]",
url     = "https://publikationen.badw.de/de/003390831",
}