@book{die+prinzipien+der+mechanik+in+neuem+zusammenhange+dargestellt,
    author = {Hertz, Heinrich Rudolph},
    title = {Die Prinzipien der Mechanik : in neuem Zusammenhange dargestellt},
    address = {Leipzig},
    publisher = {Verlag von Johann Ambrosius Barth},
    date = {1910}
}