@book { EssaysinInternationalTradeandPublicEconomics,
    title = "Essays in International Trade and Public Economics",
    author = "Margarita {Kalamova}",
    year = "2018",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b13718",
    url = "https://www.peterlang.com/document/1068295"
}