Ontology-based design of educational trajectoriesRaud, Zoja; Vodovozov, Valery; Petlenkov, Eduard; Serbin, Aleksandr59th Annual International Scientific Conference on Power and Electrical Engineering : November 12, 13, 2018, Riga Technical University (RTUCON) : conference proceedings2018 / 4 p. . ill https://doi.org/10.1109/RTUCON.2018.8659893 Ontology-based design of the learner’s knowledge domain in electrical engineeringRaud, Zoja; Vodovozov, ValeryScientific Journal of Riga Technical University. Electrical, control and communication engineering2019 / p. 47-53 : ill https://doi.org/10.2478/ecce-2019-0007