Editor-in-Chief
Prof. Sava Grozdev, DSc., University of Finance, Business and Entrepreneurship – Sofia (Bulgaria)
Editor: Zhivka Bakalova
Editorial Board
Prof. Nikolay Rozov, DSc., Academician of Russian Academy of Education
Prof. Tatyana Sergeeva, DSc. – Academy of Public Administration – Moscow (Russia)
Prof. Maria Shabanova, DSc. – Moscow State University of Open Education (Russia)
Prof. Dr. Risto Malceski – FON University – Skopje (Macedonia)
Prof. Dr. Gregory Makrides – Thales Foundation – Nicosia (Cyprus)
Prof. Dr. Florence Singer – University of ploiesti (Romania)
Prof. Dr. Sefket Arslanagic – University of Saraevo – Saraevo (Bosnia and Herzegovina)
Prof. Dr. Atanasios Gagatsis – University of Cyprus – Nicosia (Cyprus)
Prof. Dr. Michalis Lambru – University of Crete (Greece)
Prof. Dr. Assen Rahnev – University of Plovdiv (Bulgaria)
Prof. Dr. Kosta Garov – University of Plovdiv (Bulgaria)
Prof. Dr. Rosen Nikolaev – University of Economics – Varna (Bulgaria)
Assoc. Prof. Dr. Katerina Anevska – FON University – Skopje (Macedonia)
Dr. Veselin Nenkov, Assoc. Prof. – Nikola Vaptsarov Naval Academy – Varna (Bulgaria)
Dr. Daniela Dureva-Tuparova, Assoc. Prof. – South-West University – Blagoevgrad (Bulgaria)
Dr. Lyudmila Haymina, Assoc. Prof. – M. Lomonossov North-Arctic Federal University - Archangelsk (Russia)
Dr. Boyko Banchev, Assoc. Prof. – Institute of Mathematics and Informatics – Bulgarian Academy of Sciences (Bulgaria)
Dr. Ivan Derjanski, Assoc. Prof. – Institute of Mathematics and Informatics – Bulgarian Academy of Sciences (Bulgaria)
Dr. Todor Mitev, Assist. Prof. – University of Ruse (Bulgaria)
Dr. Petya Asenova, Assoc. Prof. – New Bulgarian University – Sofia (Bulgaria)
Dr. Angel Angelov, Assoc. Prof. – University of Sofia (Bulgaria)
Ms. Zhechka Toteva – CERN/IT – Geneva (Switzerland)
Dr. Diana Stefanova – teacher, Assenovgrad (Bulgaria)
Ms. Manya Maneva – Ministry of Education and Science (Bulgaria)
Ms. Manya Maneva – Ministry of Education and Science (Bulgaria)
Ms. Irina Sharkova – First Private High School of Mathematics – Sofia (Bulgaria)
Ms. Galina Bobeva – principal, High School of Mathematics – Ruse (Bulgaria)
Ms. Katya Chalukova – teacher, High School of Mathematics – Dimitrovgrad (Bulgaria)
