Obata, Ippei Physical Cosmology, MPI for Astrophysics, Max Planck Society;
Hiramatsu, T., Murai, K., Obata, I., & Yokoyama, S. (2021). Statistically-anisotropic tensor bispectrum from inflation. Journal of Cosmology and Astroparticle Physics, 2021(3): 47. doi:10.1088/1475-7516/2021/03/047.