• On approximation properties of the generalized sampling operatorsTamberg, GertFunctional Methods in Approximation Theory and Operator Theory III : August 22-26, 2009, Volyn, Ukraine2009 / p. 93-94
• On norms of some Shannon sampling operatorsTamberg, GertApproximations, Harmonic Analysis, Operators and Sequences : research communications of the workshop held in Narva-Jõesuu, Estonia, October 3-5, 20082008 / p. 45-47
• On Rogosinski-type approximation processes in Banach space using the framework of the cosine operator functionKivinukk, Andi; Saksa, AnnaMathematical Foundations of Computing2022 / p. 197-218 https://doi.org/10.3934/mfc.2021030 https://www.scopus.com/sourceid/21101052917 https://www.scopus.com/record/display.uri?eid=2-s2.0-85132248894&origin=inward&txGid=8675def8e856f3018962ca2c0b010565
• Sequence spaces defined by modulus functions and superposition operatorsRaidjõe, Annemai2006 https://www.ester.ee/record=b2166664*est
• Shannon sampling series with averaged kernels [Electronic resource]Kivinukk, Andi; Tamberg, GertSampTA07 : Sampling Theory and Applications : 7th International Conference Sampling Theory and Applications : June 1-5, 2007, Thessaloniki, Greece2007 / ? p. [CD-ROM] https://www.yumpu.com/en/document/view/13309869/shannon-sampling-series-with-averaged-kernels1-1-