- Serbian). p. 14.
Branka Vasiljević (31
March 2021). "Vodena
kapija vek bila
zatrpana zbog pruge" [Water Gate was
buried for a
century because of the railroad]...
- p. 14. Beta (22
November 2018). "Zavod:
Kapija na Trgu
republike biće
zatrpana i popločana" [Institute: The gate at the
Republic Square will be buried...
- quarry] (PDF).
Velebiten (23): 9–13. ISSN 1332-6651. Božić,
Vlado (2004). "
Zatrpana špilja Žrvena peć". Speleolog. 52 (published 2005-05-02). ISSN 0490-4109...