Kalep, Rein2021-03-022021-03-022016https://dspace.tktk.ee/handle/20.500.12863/610loenguvideo kujutavast geomeetriastMathematics, Sciences, and Graphics--Engineering GraphicsReaalained ja graafika--InsenerigraafikaReaalainete keskusCenter for Mathematics and Sciencesinstructional video