• Interpretation of radio metric signal for tumour detectionRiipulk, Jevgeni; Hinrikus, Hiie19th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, Oct. 30 - Nov. 2, 1997, Chicago IL USA : Magnificent Milestones and Emerging Opportunities in Medical Engineering : final program & abstract book1997 / p. 165 https://ieeexplore.ieee.org/abstract/document/756838
• On metamodel-based design of software metricsEessaar, ErkiBalancing agility and formalism in software engineering : second IFTP TC 2 Central and East European Conference on Software Engineering Techniques : CEE-SET 2007 : Poznan, Poland, October 10-12, 2007 : revised selected papers2008 / p. 40-54 https://link.springer.com/chapter/10.1007/978-3-540-85279-7_4
• TarkvarameetrikadTreu, TõnuArvutustehnika ja Andmetöötlus1994 / 9, lk. 11-17; 10, lk. 15-12; 11, lk. 22-26: ill