@book { sQualittenimMittelhochdeutschen,
    title = "‚s‘-Qualitäten im Mittelhochdeutschen",
    author = "Robert {Bachmann}",
    year = "2011",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783640927593",
    url = "https://www.hausarbeiten.de/document/172720"
}