Ragalytė, Birutė, and Alma Paukštienė. “A. Busilas Education Ideas in Inter-War Lithuania Periodicals and Methodology of Mathematics”. Lietuvos Matematikos Rinkinys, vol. 56, no. B, Dec. 2015, pp. 108–113, https://doi.org/10.15388/LMR.B.2015.20.