http://www.matricula.findbuch.net/php/view2.php?ar_id=3670&be_id=1796&ve_id=196713&count
Zdrojem citované informace <http://www.matricula.findbuch.net/php/view2.php?ar_id=3670&be_id=1796&ve_id=196713&count>- Reference (2)
- osoba: Leopold Havelka
- osoba: Bohumil Havelka