Xin Zhang, Dongqiang Lei, Pan Yao, Biao Guo, and Zhifeng Wang. “Spectral Beam Splitting Technology for Photovoltaic and Concentrating Solar Thermal Hybrid Systems: A Review”. Journal of Solar Energy Research Updates, vol. 7, Jan. 2020, pp. 64-84, doi:10.31875/2410-2199.2020.07.7.