Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

• I. Stefanov2 profiles20 · h 10
• M. Todorov18 · h 12
• S. Donkov15 · h 7
• S. Yazadjiev13 · h 41
• T. Veltchev13 · h 8
• R. Klessen12 · h 89
• I. Koprinkov9 · h 9
• N. Mastorakis2 profiles7 · h 34
• A. Stefanov5 · h 8
• E. Petkov5 · h 6
• A. Varonov4 · h 6
• D. Doneva4 · h 36

• Sofia University "St. Kliment Ohridski"BG36 papers
• Bulgarian Academy of SciencesBG13 papers
• Heidelberg UniversityDE11 papers
• Institute of Mathematics and InformaticsBG9 papers
• Nanyang Technological UniversitySG5 papers
• University of Chemical Technology and MetallurgyBG5 papers
• University of TübingenDE4 papers
• Hellenic Naval AcademyGR3 papers
• Institute of Astronomy and National Astronomical ObservatoryBG3 papers
• Institute of ElectronicsBG3 papers
• Ss. Cyril and Methodius University in SkopjeMK3 papers
• University of PisaIT3 papers