Sondore, A., Krasti┼ća, E., Daugulis, P., & Drelinga, E. (2016). UNDERSTANDING OF BASIC CONCEPTS FOR MASTERING COMPETENCES OF SCHOOL MATHEMATICS. SOCIETY. INTEGRATION. EDUCATION. Proceedings of the International Scientific Conference, 2, 330-342. https://doi.org/10.17770/sie2016vol2.1383