Kántor, Sándor, and Tünde Kántor. “On an International Training of Mathematically Talented Students: Assets of the 20 Years of the ‘Nagy Károly Mathematical Student-meetings’”. Teaching Mathematics and Computer Science, vol. 10, no. 1, June 2012, pp. 77-89, https://doi.org/10.5485/TMCS.2012.R018.