@Book{Barthel1969,
author  = "Barthel, Karl Werner",
title   = "Die obertithonische, regressive Flachwasser-Phase der Neuburger Folge in Bayern",
year    = "1969",
address = "München",
series  = "Abhandlungen",
volume  = "Neue Folge ; 142",
url     = "https://publikationen.badw.de/en/003153126",
}