Belogrudova, Ludmila, Inese Dudareva, Vyacheslavs Kashcheyevs, and Arnis Voitkans. “NATIONAL PHYSICS OLYMPIADS FROM THE POINT OF VIEW OF PARTICIPANTS AND PHYSICS TEACHERS”. SOCIETY. INTEGRATION. EDUCATION. Proceedings of the International Scientific Conference 2 (May 28, 2021): 84–95. Accessed November 15, 2024. https://journals23.rta.lv/index.php/SIE/article/view/6209.