TalTech varustab helitoega 95% liftidest
Mente et Manu
2018
/
lk. 12
http://dea.digar.ee/publication/AKmenteetmanu
http://www.ester.ee/record=b1242496*est
https://www.ttu.ee/public/m/mente-et-manu/MM_05_2018/mobile/index.html
https://artiklid.elnet.ee/record=b2868916*est