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                S. Nagaitsev, W. F. Bergan, V. A. Lebedev, G. Stupakov, and E. Wang, “Cooling and Diffusion Rates in Coherent Electron Cooling Concepts”, in Proc. 12th Int. Particle Accelerator Conf. (IPAC'21), Campinas, Brazil, May 2021, pp. 3281-3284. | 
                                
            
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                N. Banerjee et al., “Electron Cooling Experiment for Proton Beams with Intense Space-Charge in IOTA”, in Proc. 13th Int. Particle Accelerator Conf. (IPAC'22), Bangkok, Thailand, Jun. 2022, pp. 2395-2398. | 
                                
            
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                P. Musumeci et al., “FAST-GREENS: A High Efficiency Free Electron Laser Driven by Superconducting RF Accelerator”, in Proc. 13th Int. Particle Accelerator Conf. (IPAC'22), Bangkok, Thailand, Jun. 2022, pp. 1094-1096. | 
                                
            
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                I. Lobach, S. Nagaitsev, A. L. Romanov, A. V. Shemyakin, and G. Stancari, “Experiments with Undulator Radiation, Emitted by a Single Electron”, in Proc. 13th Int. Particle Accelerator Conf. (IPAC'22), Bangkok, Thailand, Jun. 2022, pp. 1628-1631. | 
                                
            
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                S. Nagaitsev, “Review of Recent Advances in Cooling Techniques”, presented at the North American Particle Accelerator Conf. (NAPAC'19), Lansing, MI, USA, Sep. 2019, paper FRXBA1, unpublished. | 
                                
            
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                S. A. Belomestnykh et al., “HELEN: A Linear Collider Based on Advanced SRF Technology”, in Proc. 31st Linear Accelerator Conf. (LINAC'22), Liverpool, UK, Aug.-Sep. 2022, pp. 31-34. | 
                                
            
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                J. D. Jarvis et al., “Demonstration of Optical Stochastic Cooling in an Electron Storage Ring”, presented at the North American Particle Accelerator Conf. (NAPAC'22), Albuquerque, NM, USA, Aug. 2022, paper FRXD1, unpublished. | 
                                
            
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                S. Nagaitsev et al., “Noise in Intense Electron Bunches”, in Proc. North American Particle Accelerator Conf. (NAPAC'22), Albuquerque, NM, USA, Aug. 2022, pp. 128-131. | 
                                
            
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                M. K. Bossard et al., “Thermionic Sources for Electron Cooling at IOTA”, in Proc. North American Particle Accelerator Conf. (NAPAC'22), Albuquerque, NM, USA, Aug. 2022, pp. 588-591. | 
                                
            
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                S. Nagaitsev, A. Romanov, A. Shemyakin, A. Valishev, G. Stancari, and I. Lobach, “Two-photon undulator radiation”, presented at the 14th Int. Particle Accelerator Conf. (IPAC'23), Venice, Italy, May 2023, paper MOPA170, unpublished. |