@book { TradingoffCompetingAllocationPrinciples,
    title = "Trading off Competing Allocation Principles",
    subtitle = "Theoretical Approaches and Empirical Investigations",
    author = "Lars {Schwettmann}",
    year = "2009",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1106839"
}