Like a (School of) Fish in Water (or ICT-Enhanced Skillsin Action). - Evgenia Sendova; Eliza Stefanova; Nikolina Nikolova; Eugenia Kovatcheva (ISSEP, 2008)

Turning university professors into competent learners. - Krassen Stefanov; Nikolina Nikolova; Miroslava Ilieva; Eliza Stefanova (Int. J. Emerg. Technol. Learn., 2008)

Creating a Natural Environment for Synergy of Disciplines. - Evgenia Sendova; Pavel Boytchev; Eliza Stefanova; Nikolina Nikolova; Eugenia Kovatcheva (EC-TEL, 2009)

Inquiry-Based Science Education in Secondary School Informatics - Challenges and Rewards. - Nikolina Nikolova; Eliza Stefanova (SEFM Satellite Events, 2012)

The Virtual Classroom - A Pilot Case in Inquiry Based Learning. - Pavel Boytchev; Eliza Stefanova; Nikolina Nikolova; Krassen Stefanov (CSEDU (2), 2014)

STEM Teachers' Competence Development: When Opportunities Jump over Barriers. - Nikolina Nikolova; Eliza Stefanova; Krassen Stefanov; Pencho Mihnev (CSEDU (1), 2018)

Opportunities and Challenges for Efficient and Effective STEM Teachers' Competence Development. - Nikolina Nikolova; Eliza Stefanova; Pencho Mihnev; Krassen Stefanov (WorldCIST (2), 2018)

Space Safari: Challenge for STEM Rangers. - Elitsa Peltekova; Eliza Stefanova; Nikolina Nikolova (CompSysTech, 2019)

In the Dinosaur' Steps through IBL Scenario: A Way to Overcome Prejudice for Career in STEM. - Eliza Stefanova; Albena Antonova; Dafinka Miteva; Nikolina Nikolova (CSEDU (2), 2019)

21st Century Skills of ICT Professionals: the Requirements of Business and Readiness of Higher Education in Bulgaria. - Albena Antonova; Eliza Stefanova; Nikolina Nikolova; Pencho Mihnev; Boyan Bontchev (CompSysTech, 2020)

Designing a Competence-Based Learning Course with Digital Tools in Higher Education. - Pencho Mihnev; Albena Antonova; Atanas Georgiev; Krassen Stefanov; Eliza Stefanova; Nikolina Nikolova (WorldCIST (3), 2021)

Evaluating the Outcomes of Competence-Based Learning Course: The Field Experience for Training 21st Century Skills in Sofia University. - Albena Antonova; Eliza Stefanova; Nikolina Nikolova; Pencho Mihnev; Ralitza Stamenkova; Temenujka Zafirova-Malcheva (WorldCIST (2), 2022)

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 (WorldCIST (2), 2023)