- For each sector the available nomenclature of Alpine units and pre-Alpine basement is given
- aSăndulescu (1994) and Balintoni et al. (2014)
- bKrstic and Karamata (1992) and Kräutner and Krstić (2003)
- cHaydoutov (1989), Georgiev et al. (2001), Yanev (2000), Kräutner and Krstić (2003) and Yanev et al. (2005)
- dThe names of the tectonic units used in this study