@Book{Lipps1906,
author  = "Lipps, Theodor",
title   = "Inhalt und Gegenstand; Psychologie und Logik",
year    = "1906",
address = "München",
series  = "Sitzungsberichte",
volume  = "1905,9",
url     = "https://publikationen.badw.de/de/007458453",
}