1. ?????? ????????? ??? ???? ? ????????????? ?????????, ??????? ?? ??????????? ?? ??. ?????. ????????????? ????;??????,2011
2. ?????????????? ?????? ??? ???? ? ???????????? ? ???????? ??????? ?? ??. ???. ?????????. 2013; ??? LIII;????? ?,2013
3. Prevalence of amblyopia in Bulgaria
4. An electronic walking stick for blinds;chaurasia;2014 International Conference on Information Communication and Embedded Systems ICICES 2014,2015
5. ?????? ?? ??????????? ?? ?????????? ?????? ? ????????, ?? ??????? ?? ?????? ????????. [Online].: ?????? ????? ?? ??????;???????,2020