@book { InterdisziplinreAspektedesStdtebaus,
    title = "Interdisziplinäre Aspekte des Städtebaus",
    subtitle = "Les aspects interdisciplinaires de l'urbanisme-Interdisciplinary Aspects of Town Planning",
    author = "Edmund {Gassner} and Nazmi {Yildiz}",
    year = "1993",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1081312"
}