1.
Zhelyazkova Ц, Boykina Д. The heuristic “Dividing into subproblems” in solving geometric problems in 7-th grade. MEM [Internet]. 2024 Mar. 16 [cited 2026 Oct. 5];53:141-8. Available from: https://smb.math.bas.bg/mem/index.php/memjournal/article/view/140