Er zijn nog geen Nederlandstalige annotaties. Hier volgen annotaties in het Engels.
- http://ran.cimec.ro/sel.asp?codran=61247.01
- https://www.google.com/maps/place/Fortifica%C8%9Bia+romano-bizantin%C4%83+de+la+Plopeni/@43.9829678,28.1980673,650m/data=!3m1!1e3!4m13!1m7!3m6!1s0x0:0xcb83b92e6827fba4!2zNDPCsDU4JzU4LjciTiAyOMKwMTInMDAuOSJF!3b1!8m2!3d43.982964!4d28.200256!3m4!1s0x40bac985527133cb:0x54f1ff4b72656bab!8m2!3d43.9833159!4d28.2001843?hl=pl-PL