Inquiry-based learning for enhancing students' interest in mathematical research: a case study on approximation theory and Fourier series. - Kateryna V. Vlasenko; Olha H. Rovenska; Iryna V. Lovianova; Oksana M. Kondratyeva; Vitaliy V. Achkan; Yana M. Tkachenko (3L-Person, 2022)