@inproceedings{railcon2026_2_5,
  title = {IMPACT OF OPERATIONAL DISRUPTIONS ON QUALITY INDICATORS IN SOFIA METRO UNDER DIFFERENT LEVELS OF AUTOMATION},
  author = {Mirena TODOROVA and Violina VELYOVA and Zlatin TRENDAFILOV and Aleksander GEORGIEV},
  booktitle = {XXII International Scientific-Expert Conference on Railways -- RAILCON 2026},
  year = {2026},
  pages = {51--54},
  doi = {10.46793/railcon26.051T}
}