@book { HaeckelsMonismandtheBirthofFascistIdeology,
    title = "Haeckel's Monism and the Birth of Fascist Ideology",
    author = "Daniel {Gasman}",
    year = "1999",
    publisher = "Peter Lang Verlag",
    address = "New York, United States of America",
    url = "https://www.peterlang.com/document/1089146"
}