@book { RecentInterpretationsofKarlMarxsSocialTheory,
    title = "Recent Interpretations of Karl Marx’s Social Theory",
    author = "Richard Ruey-Chyi {Hwang}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1100820"
}