@book{cbdu15030,
          number = {1503},
           title = {Extr{\'a}ordyn{\'a}ryine z Poczty Ces{\'a}rskiey wi{\'a}domo{\'s}{\'c}i. z Kr{\'a}kow{\'a} 11. Octobris 1687. },
         address = {Krak{\'o}w},
             url = {http://cbdu.ijppan.pl/id/eprint/15030/}
}