@book{cbdu18410,
           title = {Extract Af Hs. Kongl. May. til Swerige etc. Skrifwelse Til Hs. H{\"o}g{--}Grafl. Excellenz Her Rijkz Cantzleren sub dato Pakosch den 4 Maij St. V. 1656},
          number = {1841},
         address = {[Stockholm]},
       publisher = {[Henrik Keyser]},
             url = {http://cbdu.ijp.pan.pl/id/eprint/18410/}
}