@book { EconomicsofMicronutrientMalnutrition,
    title = "Economics of Micronutrient Malnutrition",
    subtitle = "The Demand for Nutrients in Sub-Saharan Africa",
    author = "Olivier {Ecker}",
    year = "2009",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1107312"
}