@book { OnInterculturalManagementBulgariaandGermanyDoingBusiness,
    title = "On Intercultural Management. Bulgaria and Germany Doing Business",
    author = "Dimko {Dobrev}",
    year = "2015",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    url = "https://www.hausarbeiten.de/document/300211"
}