DuoSearch: A Novel Search Engine for Bulgarian Historical Documents. - Angel Beshirov; Suzan Hadzhieva; Ivan Koychev; Milena Dobreva (ECIR (2), 2022)

Drinov Orthography for Post-OCR Correction dataset. - Angel Beshirov; Milena Dobreva; Dimitar Dimitrov 003; Momchil Hardalov; Ivan Koychev; Preslav Nakov (Zenodo, 2024)

Post-ocr text correction for Bulgarian historical documents. - Angel Beshirov; Milena Dobreva; Dimitar Dimitrov 003; Momchil Hardalov; Ivan Koychev; Preslav Nakov (Int. J. Digit. Libr., 2025)