| 2757 |
SPECIFIC issues of contemporary preschool education in Bulgaria and Slovakia |
|
"St. Kliment Ohridski University Press" |
2018 |
ISBN (978-954-07-4388-2) |
| 2763 |
SPORT, Stress, Adaptation |
|
|
2014 |
ISSN (2367-458X) |
| 2765 |
STATUTS d'emploi, contracts de travail et securite |
|
Editions universitaires Stopanstvo |
2003 |
ISBN (954-494-566-0) |
| 5070 |
STEM образование, иновации и знание |
STEM Education, Innovations and Knowledge |
Фонд. Европ. институт за технологии, образование и дигитализация |
2022 |
ISSN (2815-2883) |
| 4181 |
STUDENTUM opera scripta |
|
Нац. муз. акад. "Проф. Панчо Владигеров" |
2019 |
ISSN (2683-0184); ISSN (2683-0184) |
| 2767 |
STUDIA academica Šumenensia |
|
|
2014 |
ISSN (2367-5446) |
| 2769 |
STUDIA Archaeologica Universitatis Serdicensis |
|
Унив. изд. "Св. Климент Охридски" |
2005 |
ISSN (1312-7284) |
| 2773 |
STUDIA classica Serdicensia |
|
Софийски унив. “Св. Климент Охридски” |
2010 |
ISBN (978-954-07-3033-2); ISBN (978-954-07-3367-8); ISBN (978-954-07-3512-2); ISBN (978-954-07-3789-8); ISBN (978-954-07-4103-1); ISBN (978-954-07-3682-2) |
| 2778 |
STUDIA Iuridico-Historica |
Правно-исторически проучвания |
Унив. изд. "Неофит Рилски" |
2012 |
ISSN (1314-9296); ISSN (2603-4581) |
| 2781 |
STUDIA Iuris |
|
Пловдивски унив. "Паисий Хилендарски" |
2014 |
ISSN (2367-5314) |
| 4759 |
STUDIA Litteraria Serdicensia |
|
Изд. център "Боян Пенев" |
2021 |
ISSN (2738-7631); ISSN (2815-2999) |
| 2785 |
STUDIA oncologica |
|
ИК Фокус |
2000 |
ISSN (1313-7115) |
| 2789 |
STUDIA Philologica Universitatis Velikotarnovensis |
Филологически проучвания на Великотърновския унив. "Св. Кирил и Методий" |
|
2016 |
ISSN (2534-918X); ISSN (2534-9236) |
| 2787 |
STUDIA praehistorica |
|
Bulg. Acad. der Wiss |
1978 |
ISSN (0204-9880) |
| 2775 |
STUDIES in linguistics, culture and FLT |
|
Асеневци |
2012 |
ISSN (2534-952X); ISSN (2534-9538) |
| 4566 |
STUDIORUM causa |
|
Унив. изд. "Св. Климент Охридски" |
1994 |
ISBN (954-07-0459-6) |
| 2790 |
SUB specile aeternitatis |
|
Унив. изд. "Св. Климент Охридски" |
2015 |
ISBN (978-954-07-3917-5) |
| 4556 |
SUBTERRANEAN Biology |
|
Pensoft Publishers |
2011 |
ISSN (1314-2615 ) |
| 3592 |
SUMER school on build environment |
|
Center for research and design in human comfort, energy and environment |
2008 |
ISBN (978-954-91681-9-8) |
| 2794 |
SUMMER school |
|
Techn. univ. - Sofia |
1986 |
ISSN (1313-9487); ISSN (1313-9479) |
| 3731 |
SUMMER School on Build Environment |
|
Center for research and design in human comfort, energy and environment |
2008 |
ISBN (978-954-91681-9-8) |
| 3598 |
SUSTAINABLE development |
|
Publ. Complex UNWE |
2012 |
ISBN (978-954-644-288-8) |
| 2796 |
SUSTAINABLE development and competitiveness of regions |
Устойчиво развитие и конкурентоспособност на регионите |
Acad. Publ. House Talent at the Univ. of Agribusiness and Rural Development |
2018 |
ISBN (978-619-203-230-2) |
| 4067 |
SUSTAINABLE Extraction and Processing of Raw Materials Journal |
|
University of Mining and Geology “St. Ivan Rilski” |
2020 |
ISSN (2738-7151); ISSN (2738-7100) |
| 2797 |
SUSTAINABLE Mountain Regions |
|
Fakel |
2015 |
ISBN (978-954-411-220-2) |