Greiner, J., Iyudin, A., Kanbach, G., Zoglauer, A., Diehl, R., Ryde, F., et al. (2009). Gamma-ray burst investigation via polarimetry and spectroscopy (GRIPS). ESA's Cosmic Vision 2007: Astrophysics Mission Proposals, 91-120. doi:10.1007/s10686-008-9102-0.