@book{beobachtungen+ueber+strandverschiebungen+an+der+kueste+des+samlands+1,
    author = {Brückmann, Rudolf i Ewers, Edwin},
    title = {Beobachtungen über Strandverschiebungen an der Küste des Samlands. 1},
    address = {Leipzig i Berlin},
    publisher = {B. G. Teubner},
    date = {1911}
}