| 2023 | WorldCIST | Qualitative Analysis on Psychological and Social Effects of Distance Education During SARS-CoV2 - COVID-19 on Students at Greek Public Institutes of Vocational Training. | Anagnostou Panagiotis, Nikolina Nikolova |
| 2022 | WorldCIST | Evaluating the Outcomes of Competence-Based Learning Course: The Field Experience for Training 21 | Albena Antonova, Eliza Stefanova, Nikolina Nikolova, Pencho Mihnev, Ralitza Stamenkova, Temenujka Zafirova-Malcheva |
| 2021 | WorldCIST | Designing a Competence-Based Learning Course with Digital Tools in Higher Education. | Pencho Mihnev, Albena Antonova, Atanas Georgiev, Krassen Stefanov, Eliza Stefanova, Nikolina Nikolova |
| 2019 | CSEDU | In the Dinosaur' Steps through IBL Scenario: A Way to Overcome Prejudice for Career in STEM. | Eliza Stefanova, Albena Antonova, Dafinka Miteva, Nikolina Nikolova |
| 2018 | CSEDU | STEM Teachers' Competence Development: When Opportunities Jump over Barriers. | Nikolina Nikolova, Eliza Stefanova, Krassen Stefanov, Pencho Mihnev |
| 2018 | WorldCIST | Opportunities and Challenges for Efficient and Effective STEM Teachers' Competence Development. | Nikolina Nikolova, Eliza Stefanova, Pencho Mihnev, Krassen Stefanov |
| 2014 | CSEDU | The Virtual Classroom - A Pilot Case in Inquiry Based Learning. | Pavel Boytchev, Eliza Stefanova, Nikolina Nikolova, Krassen Stefanov |
| 2012 | SEFM | Inquiry-Based Science Education in Secondary School Informatics - Challenges and Rewards. | Nikolina Nikolova, Eliza Stefanova |