Lukashova Tetіana, et al. “KNOWLEDGE FOUNDATION IN THE SYSTEM OF PROFESSIONAL TRAINING OF PRE-SERVICE MATHEMATICS TEACHERS IN STUDYING THE MATHEMATICAL INDUCTION METHOD ”. Physical and Mathematical Education, vol. 38, no. 3, June 2023, pp. 29-35, https://doi.org/10.31110/2413-1571-2023-038-3-004.