Parkhats, V., R. Krzywoń, J. Hulimka, and J. Kubica. “Determination of Bond Model for 7-Wire Strands in Pretensioned Concrete Beam”. Acta Polytechnica, vol. 61, no. 6, Dec. 2021, pp. 740-8, doi:10.14311/AP.2021.61.0740.