Trakia Journal of Sciences
The Official Scientific Journal of Trakia University , Stara Zagora, Bulgaria
1312-1723 - ISSN TJS (print)
1313-3551 - ISSN TJS (online)
1313-7050 - ISSN TJS: Biomedical sciences
1313-7069 - ISSN TJS: Social sciences
TRAKIA JOURNAL OF SCIENCES was founded in 2003 and since
then 4 issues per year are issued regularly.