@book { HandbookofRenewableEnergiesintheEuropeanUnion,
    title = "Handbook of Renewable Energies in the European Union",
    author = "Danyel {Reiche}",
    year = "2002",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-01905-6",
    url = "https://www.peterlang.com/document/1051890"
}