Flexible curricula based on educational thesaurus [Electronic resource]Raud, Zoja; Vodovozov, ValeryProceedings of the 15th IASTED International Conference on Computers and Advanced Technology in Education2012 / p. 219-226 : ill [CD-ROM] https://www.researchgate.net/publication/266630129_Flexible_Curricula_based_on_Educational_Thesaurus