@book { EffectsofIncludingAgriculturalProductsintheCustomsUnionbetweenTurkeyandtheEU,
    title = "Effects of Including Agricultural Products in the Customs Union between Turkey and the EU",
    author = "Harald {Grethe}",
    year = "2004",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b14161",
    url = "https://www.peterlang.com/document/1068659"
}