2 citations to https://www.mathnet.ru/eng/cmfd114

1. T. Yu. Semenova, “Estimate of the convergence rate in the Riemann localization principle for trigonometric Fourier series of continuous functions”, Math. Notes, 116:2 (2024), 328–341      
2. Wang Yu.G., Sloan I.H., Womersley R.S., “Riemann Localisation on the Sphere”, J. Fourier Anal. Appl., 24:1 (2018), 141–183