@book{cambrai,
    author = {Burg, Hermann i Erhard, Hermann i Schnabel, Franz},
    title = {Cambrai},
    address = {[S.l.] i Heidelberg},
    publisher = {Korpsverlagsbuchhandlung des XIV. Reservekorps ; i Im Buchhandel durch Carl Winters Verlag},
    date = {1917}
}