@book { MarxunddieSozialphilosophie,
    title = "Marx und die Sozialphilosophie",
    author = "Alexej {Licharew}",
    year = "2018",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    url = "https://www.hausarbeiten.de/document/446839"
}