Kastickaitė, Joana, and Juozas Banionis. “Teaching of Differential and Integral Calculation Basics in Lithuanian Schools before the Teaching Reform in Mathematics (in 1918– 1928)”. Lietuvos matematikos rinkinys 50, no. proc. LMS (December 20, 2009): 155–159. Accessed May 3, 2024. https://www.journals.vu.lt/LMR/article/view/17920.