Biancalani, A., Chavdarovski, I., Qiu, Z., Bottino, A., Del Sarto, D., Ghizzo, A., et al. (2017). Saturation of energetic-particle-driven geodesic acoustic modes due to wave–particle nonlinearity. Journal of Plasma Physics, 83(6): 725830602. doi:10.1017/S0022377817000976.