• Internet-based software for teaching test of digital circuitsUbar, Raimund-Johannes; Orasson, Elmet; Wuttke, Heinz-Dietrich23rd International Conference on Microelectronics : MIEL 2002, Niš, Yugoslavia, 12-15 May 2002 : proceedings. Volume 22002 / p. 659-662 : ill https://ieeexplore.ieee.org/document/1003344
• Internet-based software for teaching test of digital circuitsUbar, Raimund-Johannes; Jutman, Artur; Orasson, Elmet; Raik, Jaan; Evartson, Teet; Wuttke, Heinz-DietrichMicroelectronics education : proceedings of the 4th European Workshop on Microelectronics Education : EWME 2002, Spain, May 23-24, 20022002 / p. 317-320 : ill https://ieeexplore.ieee.org/document/1003344