@book { VomHegelianismuszumphilosophischenMaterialismus,
    title = "Vom Hegelianismus zum philosophischen Materialismus",
    author = " {Hang-Gu Cho}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1088039"
}