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S. I. Kulinich, L. Y. Gorelik, and R. I. Shekhter, Nanomechanical pumping of Cooper pairs through NS junction, Low Temp. Phys. 49, 1105–1110, (2023) [Fiz. Nyzk. Temp. 49, 1219–1224, (2023)] DOI: https://doi.org/10.1063/10.0020864.