@book{der+bober+deich+verband+in+den+kreisen+bunzlau+und+sprottau,
    author = {Kölichen, Friedrich von},
    title = {Der Bober-Deich-Verband in den Kreisen Bunzlau und Sprottau},
    address = {Bunzlau},
    publisher = {Druck von L. Fernbach},
    date = {1893}
}