@misc{Hensel_Marian_Gniezno_1963,
 author={Hensel, Marian},
 copyright={Rights Reserved - Restricted Access},
 address={Gniezno},
 howpublished={online},
 year={1963},
 language={pol},
 title={Gniezno - rzut poziomy katedry gotyckiej oraz reliktów romańskich},
 keywords={geodesy, architecture, cathedral, Great Poland (Poland), Gniezno (Poland)},
}